<human>: Sorry it might be silly but I come from a generally conservative family/friends and I really don't know who to ask about this..

So me and him met in college and thought of each other as hot, but didn't act on it. Couple years out of college, we meet again, and our a little-more-than-acquaintance-friendship becomes a FWB briefly. It was a FWB because he was looking for a job and may move away, and I wasn't particularly looking for anything but was down to mess around a bit. Few months later he finds a job in the area, and suggests to me that he would like to actually date me. I turned him down 'cause I'm not interested in a relationship right now. He seemed hurt ("why is it so bad to date me?") at that time.

Before I turned him down, we've gone grocery shopping a few times, and when he came by, I'd make something to eat or we'd enact some fantasies and stuff. I don't consider him one of my closest friend or anything though. After I turned down his suggestion of dating, I've decided to not hang out with him but I constantly get texts from him asking how was my day/weekend etc or if I want to go do something fun (festivals, games, etc). I decline every single invites, but then I get this text about how it's his bday and asks me if I could join his pizza party w some friends. I declined that as well. He continues to be friendly suggesting grocery runs and whatnot.

In any case, how do I proceed? I feel like a bad "friend" since is his bday, but I also don't want to leave any hint of leading him on.

Can you condense the text into three sentences or less?
<bot>: FWB who wanted to date me being rly friendly. I don't want to lead him on but don't want to be mean either. What to do?