Good afternoon folks, and i figured I'll give you guys some background before I jump right into it.

This girl and I have known each other for years now, roughly 4, and we've been together romantically for 3 of them. It's been rough this last year to say the least, to the point were we've separated but decided to remain good friends. We've basically moved on by this point, and have forgiven each other for past mistakes and what not.

It wasn't long till she mentioned becoming physical again, and really pushed the idea onto me. She said I was being a dickhead and such for not wanting to do so, and how none of us have a significant other so it shouldn't matter till she eventually threatened to cut me off all together, so i reluctantly agreed because I still want to have this person in my life ya know? Despite agreeing and doing stuff, I'm still heavily conflicted about this and even mention it to her sometimes, but I'm met with the same response.

Am i the asshole for initially rejecting this idea, and for continuing to have this doubt?