How much of an age gap is too much?

I’m 18 and im crushing hard on a guy like 10 years older than me... that’s normal but the thing is I think he’s into me too! So something could actually happen between us.. is that bad? Obviously I know he’s too old for it to be anything serious I don’t care about that tho. He’s got a couple of kids, but he’s single. I just can’t stop thinking about him 😍 should I ignore my feelings because this is crazy or can I go for it?

Update:

Thank you ladies for all your advice!! Seriously it helped. And...

We fucked but 🤫😈😈🙊