Husband having Female friendships

So I’m currently 5 months pregnant with our first kid. We married last March and bought a house in July. We were originally in Southern California but decided to move to Northern California to kind of have a fresh start and be closer to my family. Every decision made my husband played the biggest role. I was honestly willing to do anything he wanted. Since being up here he constantly talks about LA and leaving it all behind and sort of twists it so it sounds like I decided to bring us up here. We will have periods of time where we are so insanely happy and doing cool stuff and bonding super hard and then one day he has a total meltdown and questions everything we’ve done to get here. I feel this desperate need to overcompensate because I’m afraid he’s just going to leave one day. He’s also trying to engage in a friendship with one of my girlfriends who is single and lives in a different state. Her and I are pretty similar looks and interests wise and a lot of her hobbies and passions were things I was involved in but have since shifted because life happens and things change. I can tell he has an interest in her and I even have brought it up to him because I can just tell. I don’t think he realizes how in tune I am to him and I can read him like a book. This secret infatuation with my friend that I think exists is tearing me apart inside. I honestly don’t mind him wanted to have friendships with women but this just doesn’t feel like that. I don’t think she would ever let anything happen even just in a conversation but the possibility that he would cross that line breaks my heart. Guess I just needed to vent about it.