We're both in our late 20's and have been together for 3 years, no children. The first 2 were happy, but this last year I've found particularly hard.
Without going into too much rambling detail, I hit a very low point with my mental health early this year, and had a brief online fling with another man. No actual sex took place, just sexting etc, which of course is still wrong me. DP discovered what was happening but somehow we've muddled along past it. However, I'm still finding myself unhappy with our relationship, but I don't seem to be able to let it go. We both love each other still, but due to my infidelity the dynamic has definitely changed. The atmosphere between us can be really uncomfortable and we've got some serious issued around sex (DP wants it, I don't, my libido is shot).
I think the best thing for us both is to go our separate ways, but I'm so petrified of being single and feeling desperately alone. I worry my mental health will take a nose dive again. That being said, I think remaining in the relationship is also having a negative effect on my mental health and I know, despite my wrong doings, I shouldn't accept some of the questionable (red flag worthy?) behaviour/language thats been aimed at me by him.
I'm not so much looking for answers here. I just needed to vent and have a chat. I have few friends to talk with and I don't have a good relationship with anyone in my family either. Feeling very alone, anxious and worried.