going into the army?

i’m not sure if this is the right group? and this might get long so sorryyy.

so my ex boyfriend and i dated from october till march. he took my virginity and we used to hangout all the time. i was even close with his friends and he’s close with my family. since we’ve broken up, we’ve still stayed super super close. we broke up because “right person wrong time.” i’m still in high school and he just graduated. it’s hard but we get through it. him and i still hangout at least once a week. i know that we still love each other, but i definitely love him more than he loves me. i know and we’re both trying to make us work. we go through everything together, and he’s genuinely my best friend. he started talking about joining the army a few months after we got together. he wasn’t super sure until he went to a meeting and signed up. the only reason he’s not deployed( to the navy) is because he has to pass a drug(marijuana) test. i’ve known for a while that he we really trying to get into it, getting down the right weight and staying healthy. it’s so hard because he’s gonna be gone for 5 years(with only 30 days visiting each year). i’m still in love with him, and he knows that. i want him to be happy in life and i know this will make him happy, so i’m obviously not gonna stop him from going.

if you’ve read this far, i guess i’m asking if i should move on? or what i should do? because he’s my first love and my first relationship. my family loves him and so do i. do i still try to make things work while he’s gone?