Is it normal to want him even though he makes me sad?

well there is this guy who I was... Let's say romantically involved with. Now I'm pretty sure he's moving on and so am I. When he told me he wanted me before and showed that he had feelings for me I always ended up feeling sad... When he doesn't contact me and when he seems as though he is happier moving on I feel much happier!!
I sort of feel free, and when he showed he wanted me I felt under pressure and sad. Yet, even though all his bs makes me sick if I could have it my way, I'd want him back :/ but I don't really feel sad when wanting him back.. Just a very tiny bit. It feels unreal and like it never happened but I think I still miss it