I've been with my DP for 2.5 years. We live together, no children between us. I asked for a break in January this year because he kept looking at my phone and distrusting me based on nothing at all. For my part, I withdrew into myself and became very cold with him. Anyway, we are on a break, still live together and are intimate. In my head, I suppose I just thought the break wasn't really a break because everything just carried on as normal.
Well it's all come to light that he has been on tinder and talking to other women. One in particular he has made loose arrangements to meet up with. We had a huge argument on Saturday night and he left. Instead of contacting me, he messaged her. She is the innocent party here because she has no clue about any of this.
Now he says it's me he loves and wants to be with. I'm being an idiot aren't I if I stay? He said it's not cheating because we were on a break but that doesn't seem right to me when we are still having sex. My head is all over the place. Am I exaggerating? What should I do? Do I tell the woman he's messaging? Why can't I figure this out myself?