Should I leave her?

She's being immature and treating you like crap. so in my opinion leave her. you're too inti her and calling her that she's probably thinking she's got you around her finger and that you'll be all over her

This is definitely a strong reason to break up with her. There's no way she can treat you that way. And I guess even giving her a 2nd chance was a bad idea. She obviously doesn't appreciate you at all. If you don't do it, she is going to dump you sooner or later.

Seems to me like you're her rebound guy, always have been, even back when you first dated. She's clearly not over her ex and I'd even go as far as to say she's still seeing him behind your back. He probably doesn't want to be her official boyfriend and that's why she uses you, as a backup plan, a way to make the ex jealous. Seriously, you deserve better than that. She's being inconsiderate and doesn't care about your feelings at all. Gotta love the way she answers when you call 'oh it's you'. Probably hoping it was her ex.

I can't tell you to break up with her but you should. Talk to her about all this and tell her how she's making you feel. See what's up. And if it's obvious that she's just playing you. End it.

Dude, where are your balls? Drop her ass in the snow and walk away. Pull up your pants, buckle up your belt and be a man. How are you going to let this girl "leave you for her ex", "get back with you" and then when you call her she says, "oh, it's you. " It should be the other way around. She calls you and you say, "Oh it's just you, I thought it was somebody important. " You either leave her or. You know what wait, she doesn't deserve to be let off so easily. If I were you I would run her ass and grind her into the dirt, simply put I would give her the silent treatment and then when you finally do decide to talk to her (if you feel like she is worthy of it), just respond with a nonchalant attitude like "whatever" and act like you're seeing other people and that you've got stuff going on even if you don't. One of my online buddies had the same problem and when his girl called and said, "can we do something tonight? " he said, "Nope, I'm sorry, I'm really busy trying to get a gift for my friend's birthday tonight, I'll see you later though, bye. " He took the remote control and turned on Sports Center for the night. See what I mean? Run her ass, give her no attention and let her get what she deserves. After you've had your fun and laughs. Then kick her ass to the curb.