How do you bring back "the spark"

So my fiancé and I have been together for almost 2 years. We are really really comfortable, maybe even a little too much? We have been good friends before dating for almost 5 years.. Maybe that's why? He calls me beautiful and everything and I know he loves me but I want to bring back that spark. He talks a lot about other girls not in a romantic or sexual way obviously or I would be pissed lol but he compares me a lot and I know I shouldn't feel insecure but a girl slips up sometimes you know? I want to find a way to see that he appreciates me without seeming to be jealous or insecure or fishing for something you know? I honestly don't care about anyone's thoughts about me but him so sometimes it's annoying when I try to be a be a good catch and it doesn't seem like it works on him:( anyone have any tips to do this?