I Am Deeply In Love

My friends always said that I'm in a perfect relationship, but I am feeling extremely insecure because my boyfriend is so amazing that sometimes I can't believe that he is with me. And I have been cheated for like 3 times in the previous relationships so I just get so worried that he might cheat or at some point he might just lost his feelings to me. Another problem is that he is not that kind of guy who always verbally prove his love to me but he act a lot I know that. Deep down I know that he truly care about me but I still feeling insecure all the time.