<human>: My GF and i have broken up :((
We have for the past month have been fighting over issues in our life.
We had agreed that during our last six months of rent we would work on our relationship.
During this period my gf had met a guy friend out in town (Night club). Although i wasn't OK with her having a guy friend i gave her the benefit of a doubt and tried to not be all controlling and all.
To cut a long story short she ended up hooking up with this guy, Made me meet him out in town (Night club) like nothing happened, Told me she thought of him while we where interment and made me feel as if i was competing with his attention.
During that month of December i gave my best at our relationship. I tried to do more things around the house and become a better Man. But she somehow wanted to try the grass on the other side of the fence and now she wants me back after putting me through so much heart break. 

After we broke up she has regretted everything she has done and wants to be back with me again.

Could you distill the essence of the text into 1-3 sentences?
<bot>: r/relationships_advice should i get back with my GF of 4yrs who cheated on me by hooking up with another guy because she was bored with her life even though i gave her everything she wanted???