(NFSW) Breaking down and crying during sex; has this happened to you?

There has been a lot going on in my life, lately. It has been extremely difficult emotionally. This past week has been especially rough.

I was with my SO this morning, and, well, one thing led to another. Mid-sex, I suddenly (and out of nowhere), started to cry. I couldn’t help it. I should add, though, that the sex was a bit painful and I think that may have brought on the emotional crying.

I have cried after sex (happy/emotional cry), but, this was different. And, instead of wanting my partner to hold me, I pulled away for a bit.

Why did I cry?