<human>: Can you condense the text into a few key points?

Last night whill over his house to celebrate Christmas with his family my now ex boyfriend broke up with me. We had been fighting a lot recently and it is in part due to me, in November I had found out he had messaged other girls throughout our relationship and hit on them/told them he fantasized about having sex with them etc. 

He was also a k2 addict and it was a habit I didn't like so those two things were a constant issues. Things had gotten better until 3 weeks ago when we practically started fighting every day because he started to act like he didn't give a fuck and even though he said he loved me his actions and the way he would speak to me would say otherwise.

 I know he was right to end it and it does hurt because despite it all we had great chemistry and personality wise aside from the above issues we clicked, physically as well. I would work on my insecurities etc if he would come back to me.
<bot>: boyfriend broke up with me due to constant arguing,  we both had fair points. I messed up and I would change for him but I seems like there is no hope of him coming back to me.