Should I sleep with my ex?

So we dated for three years , and man when I tell you love(d) him I do .. cause when I hold onto him it’s like something I’ve never felt before (like I never wanna let him go , I would die if something happened to him) .

So he broke up with me a month ago and we still talk once in a while .. Usually when he’s lonely he’ll message me , or when he’s horny and it’s usually always after 1am ...

So I’ve been really sad lately and I CANNOT think of anyone at all ... it’s always him . I always have guys hitting on me but I hate it I just want him . Anyways I try and leave him alone so it doesn’t hurt me as bad , I keep my distance but I’ve been so horny and he is too and I’m wondering if it’s a good idea to have sex ?? We use to have the best sex btw and we miss it but I know he doesn’t miss me just the Sex .

Should I just go for it or is it a bad idea ?????