Guy friend who once set me up with his buddy now says he might like me—how seriously should I take this?

So they added me on facebook recently after a while of not really talking to each other, and I add him back. All fine and dandy, of course. Last night/today we had a conversation that somehow lasted an entire 13 and a half hours and both forgot to sleep- over vc, mind you, he's in another state. We somehow didn't get off the phone until he had to go into work. During this conversation they said they wanted to get to know me better and we decided to use never have I ever as a topic starter, looking up or thinking of various questions. We also went back and forth about a bunch of songs we both like and different games we play, relationship histories, embarrassing moments, all kinds of fun bullshit. Then they said that they were going to embarrass themselves and said they might actually like me, continuing with that they weren't entirely sure, that he thought me cute and fun to talk to- that he didn't approach because he was trying to set me up with his buddy who really liked me at the time- and wanted to ask a lot of questions to know me better. Playing never have I ever he mentioned sunburns, and I replied that I had em a couple times, but don't have enough melanin to completely avoid it, to which he said that he could give me some, before quickly brushing it off, calling it a reflex, so I just rolled my eyes and said he wouldn't be the first (to say that), and he said that he wouldn't mind being the last? Anyway, I replied that I doubt he'd be the last to say it, since a lot of people like to talk shit, and he paused and asked whether I thought he meant it or not. I said probably not, since he called it a reflex, then he asked if I remember what he said earlier, possibly about how he said he liked to be straightforward? (He didn't elaborate on that bit, guessing) I'm somehow at a loss, we had some great conversations so far, and that last one was over half a day, but we also haven't been back in contact that long, so I don't know if he's actually serious?

Guy friend who once set me up with his buddy now says he might like me—how seriously should I take this?
Post Opinion