It's only been 2 months...

I am on here seeking advice/ words of comfort because I feel like I can't talk to people I know without them being judgy. My husband and I have been married for a little over 2 months. As soon as we got back, this girl from his job started taking interest in him (they barely talked before). Eventually she expressed feelings for him and for a moment he let that get to his head. He supposedly doesn't say anything inappropriate, but he hasn't been checking her when she's out of line. I saw him messaging his best friend about it and that's how I found out. Again, he hasn't done anything, but she's saying things that speak to his ego. We talked it out and he was suppose to handle it. Well yesterday he seemed really off and wanted to talk. They had still been talking to each other and she keeps flirting and feels the need to tell her husband that she likes someone. I think now he understands how far this has gotten and is trying to figure out how to fix this (nothing has happened between them and he told me this stuff voluntarily). It makes me feel better that he knows this is wrong, but I still feel slighted. I'm a firm believer in making marriages work without forcing them and I want us to get past this. Any words of wisdom?