Idk what to do

So I met this guy in November, we dated until January. Every month since we’ve contemplated getting back together but it just hasn’t happened. Since April we’ve been hanging out more, I’m around his friends and family as well. But, he doesn’t want to rush into anything. My feelings are there for him and he knows that. I seen he “loved” his exes photo on Facebook yesterday and I instantly got jealous! Idk what to do, I really do love him.