I'm actually a little shaken too bc for the FIRST time in my life, a guy I was happily dating, pulled a disappearing act on me. (Aformentioned awesome guy above who got promoted and I took out to dinner.) So I am now questioning my guy intuition which is usually good.
But my track record is still really good so.......I will offer my two cents.
The fact he checked the option of just wanting to meet friends doesn't exactly instill a lot of confidence here. But PAY ATTN TO WHAT HE DOES, not what he says.
And it takes time to observe a person's behavior and figure out what is BS meant to make you think he's a good guy versus what he truly is like.
If you know you get attached quickly after sex, don't sleep with him or whatever it is that gets you prematurely attached, don't do it.
Did you ask him why he said he just wants to meet friends? What did he say?
I met a guy online who said he's just looking for "pen pals" (similar), and when I asked, he said it was to avoid being targetted by those beautiful Ghanian "women" looking for money. OK, fair enough. But 11 months of dating later, I realized, he would have been better off with a pen pal!
With your guy, i would simply explain, very clearly but pleasantly and unemotionally, that his listed dating goal (ie, to make friends) concerns you bc you are looking for someone who also has a goal of committing to an exclusive relationship after a couple of months of dating. And if he doesn't have that same goal, you would still LOVE to kick it w/ him as friends, no harm no foul, but he needs to let you know so the two of you aren't butting heads."
If he assures you he has the same goal, you should just hang back and let him show you (and continue meeting other guys until he tells you he is ready to commit).