Hi I’m 19 years old and my Bf is 20

My boyfriend is in the navy and he is currently in A school so lately he’s been spending a lot of time with the boys. I told him constantly I don’t think it’s fair that we barely talk because you spent a lot of time with your friends. It always leads to a argument. I’m afraid that’ll cheat on me I know he would never do anything like that but you never know. I hate how my life is kind of at a stand still because he’s gone. Then I constantly watch siblings all day. I’m just really stressed