Have I become shallow?

After a messy, horrible breakup, me and my ex do not speak at all. She's seeing someone else now. I'm not saying I'm good looking, or ugly. I'm not fat, I'm skinny. I don't work out or anything. I'm just me. Anyway, my ex liked me first. She was 'okay' looking - in my opinion - but I liked her personality, and I guess it made her more attractive. She wasn't slim, she was a bit... curvy, I guess. Well, she was a bit 'big' on her bottom half - never bothered me though, I liked her. Both are Christian, and stuff happened between us - more than I'd ever done with anyone. Then after the breakup she turned foul, like a different person. A genuinely horrible, two faced person. Goes on a date, comes back to me, end it, new boyfriend, ends it, now with someone else. Over the space of like two months. I don't have her on Twitter, Facebook or anything. Don't even have her number, and I told her I'd changed mine so she deleted my number too... but a friend posted a pic on Twitter, and she's on the pic. She looks ROUGH. Like, I can't believe I went out with her. She doesn't look nice at all. I was told by a friend she's not told her new boyfriend she went out with me in case he asks what me and her have done, and she want's to make out she's never done anything with a guy - which is her choice, but makes me realise she's a bit of a liar. Anyway. I'm probably sounding bitter/rude etc. but am not. I've never thought so bad of someone before, and I don't know if it's me becoming shallow, or just because of what happened has made me resent everything about her. Am I shallow? Or what.

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