I would say i'm at the total other end of this spectrum, punting's purely physical for me now. However it's literally called the GFE, so there's little way to know if it's genuine or not, so you will likely get taken advantage of seeing it as anything more. Only way i'm aware of is if they want to see you without the money.
There was one sp I considered dating when I was younger she was 21 and I was 27, still poss my favourite of all time. Looked her up when I joined, very mixed bag of reviews, which made me laugh. I was round at hers many nights, still paid though, even though we had a connection that felt real, I don't know if it was. Luckily got my moneys worth on every meet. I was younger and she was so beautiful/exactly my type, now just see them as oh she was another beautiful girl with an endearing personality.
OP why do you punt? Serous question.. do you see a profile and think I want to fuck her then get distracted talking?
I'm not an expert on this, but sounds to me you need to get a real relationship/girlfriend. In the meantime if I had your problem I'd assume all sp's are giving me the GFE and nothing more unless something happens that's blatantly counter to that, remember why you're there and make sure you get out of the booking what it is you went for, and leave thinking that was a good GFE, but not real.