Hello lovely ladies!

I just became official with someone, and I’m trying to bottle up any insecurities I may have.

I’ve noticed that he seems to be very close to one of his ex-girlfriends. Now here’s the thing. I didn’t find this out from him telling me. I found out through Facebook and because when we’re out sometimes he’ll get notifications on his phone and I’ll see her name. He’s mentioned her before simply as a friend living across the country. It sounds like she’s going through a tough time socially.

I don’t know how big of a deal this is. I don’t doubt he likes me, and I feel like he probably wouldn’t be doing anything behind my back, but I feel insecure that he hasn’t mentioned her to me yet as “the ex” and is still in good contact with her. Is it because he may be still invested?