Have you got a clear idea in your mind about if you definitely don't want to have sex with him on Fri?
You say you've never had a one night stand. Is this something you are up for trying or want to avoid. If you want to avoid it, I would make that clear before you meet - you can thank him for his recent phone conversation saying he is interested in a relationship, that you'd like to rewind the last couple of days if that's possible and want him to know you won't be having sex with him on Friday if you meet up.
You can see then if he is still interested in meeting.
To those going on about people being prudes, the thing is that Op says she isn't interested in one night stands and hasn't had one before. She isn't making comments about those who do have them. If she doesn't want one that's fine and it's not unreasonable for people to point out that getting involved in setting and phone sex probably sends a signal that sex might well be on the cards, even if it's not guaranteed.
Everyone can do what they want. Of course they can.....but they need to be aware of how their actions are perceived. Op has just realised this and isn't comfortable with it, having not quite thought through the ramifications before the phone sex.
If she was up for a one night stand or something very casual, then all fine. The difficulty comes in sending messages which it is difficult to pull back from. We know that lots of people doing online dating are only interested in sex - that is fine, but if you aren't interested in speedy sex but something long term and think waiting a bit longer for sex is helpful in developing the relationship, then it's not unreasonable to conclude that this one is probably finished in these terms - the starting position just isn't conducive in OP's mind to what she hopes to get from her dating.
I'd say best to bin this one and start again, having lived and learned.
The trouble is, it can be difficult to do the sensible thing when you're dating and be drawn in by someone showing interest and attention, even if it's over the things that probably won't lead to the long term relationship. Op likes this character, clearly fancies him on line and is now faced with walking away and the possibility there might not be anyone else for a while, and taking a chance. Personally I would walk away if I wasn't up for immediate sex, but Op sounds like she really wants to meet him and will be persuaded to go. Will she also be persuaded to sleep with him? Fine if she wants to .....not so great if afterwards she will feel regret as she did with the phone sex.