You’ve known this girl all your life, and yet instead of talking about the feelings you know she has you decide to show her that you're in a relationship by making her witness it in person without any sort of warning?!
Look, I had a plan, it just went wrong! I knew she'd be upset no matter what, but I figured it would be easier on her if she was under the impression that i was just stupid and oblivious to her attraction, so that in a way I wouldn't be rejecting her! So I planned to introduce you to her but Greg wanted to see me in his office and I was running late for class so I thought I'd try afterwards but--
Oh please, you chickened out at every opportunity. Not only that, but did you ever think about the consequences of you being oblivious to her, what that must have done to her self-esteem? If she made an effort to get you to notice her in a different way and you just ignored it entirely. Well, dammit that couldn't have felt good, Elliot
...I didn't consider that...
Why are you even still here?! Go after her, you jerk! You need to talk to her and tell her the truth!
Right! ...Wait, aren't you worried about your boyfriend talking to a girl who is attracted to him and known him for years?