<human>: So a few months ago, the girl who worked next door to me rejected me when I asked her out. I went through all kinds of feelings of hurt, anger, bitterness, issues with self worth, etc. About a month ago, I started working out and eating healthier, and I've been pretty consistent with it, never having days where I don't feel like doing it or not being motivated to do it. But recently I've just started thinking about why I started. Obviously it was just to be healthier/look better and more attractive, but I've been thinking about why she rejected me, and more than likely it was because of my looks. So I've been having thoughts lately of getting really toned and fit to make her jealous, because I know she likes the athletic type and stays fit herself. Now, I know that this is just me thinking random thoughts, and more than likely if I show up in a while noticeably better looking then it won't change anything, but I just think about a scenario where she'd feel bad, kind of like a "I can't believe I rejected him before," type thing. Weirdly enough, even though it kind of gives me this ongoing motivation, I feel kinda bad cause she had every reason to reject me in the first place, so I feel like I have no reason to be mad at her for anything, but I still think these thoughts which I perceive to be bad. Anyone have any thoughts on this?

Could you distill the essence of the text into 1-3 sentences?
<bot>: Got rejected, started working out, lately been thinking about if I show up noticeably toned/more athletic looking then I'll make her jealous, feel bad for thinking this way, would like some input.