Is OTHER wrong in the post ? POST :  

Apologies for the terrible formatting and grammar as this is my first post.

Some background:

I met a girl through a friend and arranged to meet her at said friends party (in September), one thing led to another and we ended up having sex. We had a date the next day so from then we were dating, the date went alright and we kept talking from then through to my birthday with a fair few arguments dotted through the time.

Just over a week before my birthday (in November) we had a huge argument about her going to stay at an ex-boyfriends house for a week, later on in the month and me not being comfortable with that a few days after said argument she tried to break things off with me but I said to give it a few days before you decide to make it final then (I found this out the other day) she apparently flirted with, sexted and arranged to sleep with another friend of hers I'll call Steve, he apparently canceled on this I don't know the reasons why. (I'm assuming this is why she tried to break things off with me), A few days before my birthday she changed her mind about wanting to break things off so we fixed things and she came down early for my birthday and things went well.

She went to see her ex for a week later in November and she let him go through her phone which caused more arguments as I again wasn't comfortable with that as he went through our conversations and others apparently and she refuses to even let me look at her screen when she's on it never mind go through it as its private as it should be.

we repaired things again and things were going well until December when we argued again because we had arranged a date for after Christmas and I suggested that because of how much we tended to argue I doubted that we would make it to the date, so she ended up breaking things off with me.

we sorted things at new years but after sorting things everything seemed to lead to an argument with her, she told me she was planning to see her friend Steve for a reschedule of November which she told me was initially to go to the cinema and she was just going to see him and was very firm on that fact, a few days ago i found out about her sexting steve etc from another friend, this caused a huge argument between us, she said that because we weren't actually in a relationship and she never went through with fucking him she didn't cheat and that she chose me over him.

yet she only came to see me and repaired things because he canceled on her, she claimed she loved me at new years which is why she wanted to sort things, during the argument she claimed she hated me and wants nothing to do with me anymore, shes blocked me so I can no longer speak to her.

she removed the block yesterday as I wanted to talk again to try getting her side of things without me arguing back and she said she doesn't want to try anymore repeatedly regardless of what I tried to say so I told her to "fuck off and be with Steve", she continued arguing afterward claiming that me being this way is what made her not want to try anymore. 

later she was telling the friend that told me about Steve that she still loves me and still wants to try, she'll just give it time. 

AITA for giving up?

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