Deployed ex boyfriend issues👀👀👀

My ex boyfriend is leaving for the Marines this June, i haven't talked to him in years(his mother reached out and told me) but he wants to meet. I'm skeptical because i already have an amazing boyfriend(who is also enlisting in the air force) and we plan on marrying. However, my ex was my first relationship, kiss, sexual partner and boyfriend to an extent.... Should i see him off or should i pay him no mind? If it doesn't sit right with my man, i wont do it but i really need help. I'm not in love with my ex or anything but... Should i?