What is the likelihood of a sexual relationship becoming a romantic relationship?

Kind of feeling like when you’re in your early 20s that is how a lot of relationships start. Boy likes girl, girl likes boy so they get it on lol and before you know it they are in a relationship but I don’t feel like that is how it works when you’re in your 40s. There’s a guy that I’m really into and I’m pretty sure if we were to be alone, it would be on like Donkey Kong! He has invited me over but I keep making excuses for why I can’t go over and he asked if he could come to my house and again I made excuses. It’s not that I don’t wanna sleep with him, because I definitely do. I just don’t wanna end up being friends with benefits.

What is the likelihood of a sexual relationship becoming a romantic relationship?
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