Well.

Tonight my girlfriend worked most of the night. When she got off work she called me and said her friend was driving her home. I said that's cool. Well 10 minutes later she tells me her friend has to drop off some sweatshirts at her ex boyfriends house then she will get me. I get pissed and hang up. An hour and a half later she is ''at home''.
What the fuck? this cunt ditched me on my birthday

Tell her that it upset you, and if she just blows it off like nothing then break up with her.

you clearly have to kill her and dump her body in the river. Then tell the cops she never came home and blame the x boyfriend. Dump the body on his lawn if you want and go on grief disability which is to be spent on strippers and coke.

Punch her in the jaw.

Is this the same one who might have been cheating on you? When her friend blurted out something about a hot guy and his car and your girlfriend mouthed something at her friend to get her to shut up?

I think you're being fucked over. Time to quit this stupid relationship and get yourself a decent bitch who isnt going to fuck you up all the time.

You got ditched, suck it up kick her in the cunt (Cunt-Punt) and throw her into a pit of used needles

That's not cool. You're justified in being upset.

Yet, there's no reason to be rude about it. She has demonstrated how much she values you. Unless there's good reason, you should probably find someone new.

I don't know...a large part (make that all) of me hopes you never see her again. Turning you into a wandering, raving lunatic, always wondering what life could have been.