Old feelings coming back... 😏

So an old friend (like a thing) of mine I use to be very close with a couple of years ago like I mean - taking long walks on the beach, deep and meaningful conversations, stuff like that has recently just popped back into my life after 2-3 years. He's one of my cousins good mates, and I went to pick up my cousin the other day and found out like 5 minutes before we got to the destination that I was picking my old friend up too. So I was completely tripped out, and we ended up all hanging out at my Aunty's place for 2 hours. And my old friend & I were just talk about how we've been and what we're doing, and I could feel some 'feelings' come back. I've been trying to ignore them and forget about it but I can't, because the thing is I have a partner and a baby so I know how ridiculously stupid it is to catch feelings. I am happy with my little family so I'm so confused as to where these feelings came from and I don't want to feel this way towards my old friend because I really do adore my little family. He's been inboxing me saying, there's still feelings there and he'll wait if he has to. That he could care for my baby like his own. I said to him could we just be friends. And he said that 'being friends won't work but he doesn't want to have nothing.' And that he can control himself not to intrude on my relationship but he'll wait if the window opens up. Should I cut him off completely?