What to do???

My fiance` and I are parting ways, sadly. I had become colder towards her the last few weeks from issues building. There are circles and pattern we fall into. She is voiceturous when I have too much time on my hands, or am too busy for her; confusing I know. I also have a daughter who I see 1 day per week, plus alternating weekends. If our weekend with her son or my daughter gets altered or changed, she gets upset/irate. "Great she wants to be with you this weekend and our weekend is ruined together, etc. "You just saw her Thurs.!"

Am I perfect, of course not!!! I have a hard time being totally open about issues or life events for fear of getting into battles again, criticized, etc. It is not a safe place. Of course this is clearing and empathically stated to her, then the anger and bickering returns.

Deep down we do love each other, are attracted to each other and have been together for 1.5 years and currently reside together...........

Insights???????

Thank you