My future husband and I had a fight about this woman that he works with over the fact that she texts/calls a lot. (He is 25 and she is 45). She knows about me and she is just a very friendly person - - she messages me on Facebook a lot about getting together. He says that they just have FRIENDS and that she is old enough to be his mom. He asked me if I wanted him to stop talking to her and I said no, that that was OK. Since this has happened their conversations have dwindled down almost to nothing. Well yesterday I saw he text her " I came to see you at your department but you weren't there" with a sad face icon.
Do I bring this up to him or just let it go?