Is it ok to accept a friend request from an ex if you're in a relationship/married?

Asked by chelle21689 (7907) December 14th, 2015 from iPhone

So I’m not really surprised by my ex (whom I was with for 5½) years reached out to me and started liking old photos of friendly pics of our old friends (not us) and sent me a friend request. We haven’t spoke in 5 years. We were okay but he got married and he wasn’t allowed to talk to me which was for the best at the time because wounds were still fresh. Anyways, they’re recently divorced as I heard. Well, divorcing soon…

I did care for him, I have memories that will always be a part of me but we were much better off as friends. We were not compatible and he kinda drove me crazy because we had different values. I love my boyfriend, I’ve never been this happy….my boyfriend and I are moving along with our lives. I’m not even really attracted to my ex anymore. Physically or emotionally. He’s not ugly, it’s just that ship has sailed.

Thing is, I do want to accept the friend request but I don’t if it’s disrespectful to my boyfriend. I don’t want to start conversation and have long talks catching up. I just want to be cordial and acquaintances like I am with a lot of people on Facebook. I was never a fan of blocking someone from my life unless they absolutely did something terrible to me. Any thoughts? Should I notify my boyfriend?