Would a guy call a girl a b*tch because she is ugly?

I've never talked to this guy before. I just hear him saying that he liked me, as I was sitting a row from him. Then the next day out of the blue he seemed all pissed and cursed at me. But I just ignored him. Could he just be shallow? I wasn't exactly looking as good that day either.
Perhaps I acted a bit phlegmatic?

...or perhaps he is just like this to everyone?

Due to you and him not having known each other for too long, I imagine that this is a broader issue, as far as this guy is concerned. What I mean is, he is most likely this way to many people and that the incident that you have described was just a case of you being in the wrong place at the wrong time..

Please be very careful with this guy... he could have issues that need to be addresses. For all intents and purposes, it should be he he came here, not you.

Take care
Kevin

Would a guy call a girl a b*tch because she is ugly?

No, the sense in that equates to calling someone who wishes to sit down on a couch a morbidly obese man for not wanting to stand up.

Perhaps my perception is skewed but I can't seem to convince myself otherwise. Because my logic is that he felt self conscious for saying he liked me so to make up for it, he's going the complete opposite to save face.

I've always been so self conscious about my profile ever since past teasing.

I don't think the way you look comes into this. "B*tch" is a common abusive term for women. It doesn't relate to anything directly about you. He'd use the same language about any woman in this situation. I know it's not much of a compliment to have had him admire you in the first place, but perhaps that's the only good thing here? He originally liked you, so that's positive about the way you were looking that day. He's backed down from that position for some reason since [peer pressure, guilt because he has a girlfriend already, an external traumatic event which means he isn't bothering to be polite to anyone.] Seems like a guy you wouldn't want to be with anyway. Definitely not someone to listen to. And nothing to do with the way you look.

The 'b' word usually refers to a person's demeanor or attitude. If he said that he liked you within earshot, it's possible he was upset because he didn't get the response from you he was looking for. It's also possible that there could be a third party involved that may have influenced him for reasons unknown. Perhaps jealousy.