She thought that Kurosaki kun is FUNNY...
She knew that Kurosaki kun is KIND (despite the constant scowling).
Orihime finds this attributes,or personality of Kurosaki kun,as something LIKEABLE.Since then,she's slowly starting to LOOK UP to him.She began more and more focused in OBSERVING everything about him (his SCENT,his way of INTERACTING with everyone,when does his facial expression changes,changes in his BEHAVIOR,etc.). This behavior from Orihime,clearly shows that she is becoming more and more INTERESTED in Kurosaki kun,she's longing to know him even more,and then slowly began wanting to be with him,and be NOTICED by him.
As Orihime began wanting to be with Kurosaki kun,she started having FANTASIES about him being with her and doing anything with him,and it really makes her happy (a normal thing that a person who have a crush towards someone,usually do).
When Kurosaki kun became a shinigami...
When Orihime and Tatsuki was attacked by a hollow (Sora),she was so surprised to see Kurosaki kun came to RESCUE her *them* (like a princess saved by her prince).
For a person who have a crush towards someone,and saw them in that kind of situation,Kurosaki kun definitely looked like a KNIGHT in SHINING ARMOR in her eyes (which makes him really AWESOME in her POV). Hence her reaction after seeing him standing right in front of her,and was protecting her (seems like,she forgets the situation she was in).
When Kurosaki kun want to rescue Rukia at the SS...
When Rukia was arrested,and was said to be executed at the SS,Kurosaki kun wanted to rescue her (another HEROIC attitude from Kurosaki kun,which made Orihime to like him even more). This behavior from Kurosaki kun really shows how KIND he really was (he'll do everything to protect the people who are DEAR to him,and no one can stop him,from doing so..a truly ADMIRABLE personality).
Time goes by,and her feelings for Kurosaki kun kept on evolving really fast.She became more attached to him,and began wanting to protect and support Kurosaki kun in his goals,that's why she decided to develop her ability.
At the SS...
During their rescue mission for Rukia at the SS,Orihime was able to witness these things,right in front of her very own eyes...
Kurosaki kun defeated the giant Jidanbou...
Orihime's POV about Kurosaki kun is becoming STRONGER and COOLER,and makes her liking him even more,and look UP to him even HIGHER than before.
Kurosaki kun defeated the arrogant guy named Ganju (who uses a weird trick), with his bare hands.Kurosaki kun was consistently showing his AWESOMENESS during the rescue of Rukia.
During those fights,Orihime was consistently trying to help him,because she really wanted to support Kurosaki kun,and be able to be there beside him,in everything he do...
As you can see from the pages that I have posted above,Orihime was INSISTING to HELP Kurosaki kun.She was so worried about him,because she have never seen Kurosaki kun fight against a STRONG opponent before,just like that giant who was in front of them.Therefore,what Kurosaki kun told her instead,was this....
Kurosaki kun told her not to worry and just wait for him to finish the fight.The same thing that happened here.....
Orihime again,wanted to help Kurosaki kun,yet he always took the fights all by himself,and won them without any trouble.This events might be the start where she thought that Kurosaki kun can handle everything all by himself,as long as he was in good term.The next fight that she managed to witness,was this one...
That time,Orihime still wanted to HELP Kurosaki kun,yet,she knew that of all the FIGHTS that he have been through,this is the fight that he'll definitely won't ALLOW anyone to "HELP him the most",even if they were capable of doing so.
Orihime witnessed him defeating such a STRONG enemy once again.Also,Kurosaki kun succeeded in permanently stopping the execution of Rukia,redeemed her friendship with Renji,and solved her relationship with her brother Byakuya.Kurosaki kun also earned the recognition of the SS in his ABILITIES as something beneficial for them,and gave him the badge for a substitute shinigami,as a part of their tradition.All those things was the result of Kurosaki kun's AWESOMENESS,that was truly ADMIRABLE for a person.
* * * * *
Orihime had already began liking Kurosaki kun so much,after witnessing those numerous events of AWESOMENESS and KINDNESS from him,her feelings for him grew even deeper and is now bordering the limits of a mere crush,and turned into ADMIRATION.Along with her feelings and her POV about Kurosaki kun,her wish to be NOTICED by him is getting stronger as well.
As the story progress,Orihime's POV about Kurosaki kun have finally reached the limit that is beyond anything normal,in case you don't believe me...
Every time Kurosaki kun said something that everything will be alright,she tends to believe in it,she tends to think that he'll definitely succeed,because he said it,and he'll never be SHAKEN by any DISTURBANCES.She UNCONSCIOUSLY starting to look UP to him,and began having an unusual amount of TRUST or rather should I say EXPECTATIONS from him.
Since she really wanted to support Kurosaki kun,she decided to become stronger,so that Kurosaki kun need not have to protect her,so that Kurosaki kun could rely on her too,so that she'll never be a burden to him.
Unfortunately,Orihime couldn't help but become BLIND with Kurosaki kun's AWESOMENESS.Kurosaki kun have become someone INVINCIBLE in her POV...and believes that he'll be able to do everything without anyone's help...just like what she MEANT here...
Orihime,started having her beliefs that Kurosaki kun cannot be defeated as long as he said he'll win,he'll do everything to keep his words.
This is how Orihime developed her feelings for Kurosaki kun,how she started liking him even more,slowly wanting to protect and help him,wanting to be there beside him,and how her POV about him has evolved into something that is non existent ( Kurosaki kun's image as someone INVINCIBLE )...