Please tell me if I’m overreacting.

My husband has always called his ex by her full name and I’ll explain what I mean.

My husbands ex’s mama is Nicole. They have never really got along, she tried taking their daughter away and have all rights although my husband fought back hard. But recently she has started to let my stepdaughter come over a lot more than she used to. Now she comes during the week which before would be a BIG NO. No matter how much her daughter asked why.

But anyway, her and my husband have been getting along pretty well lately. We even had lunch with her and her family after my stepdaughters 6 grade graduation. But I help and feel bothered when my husband calls her “cole” instead of her full name. Because that’s what he used to call her when they were together. Her family calls her Nicole. He also calls his daughter Cole as her name is Colie. But why does he have to call her mom by her nickname all of a sudden? Maybe I’m overreacting so please don’t bash me. I know how harsh y’all can be. I’m just not used to this.

Also, when we had lunch with her... her and my Husband kept laughing at each other’s jokes and he was interested in knowing how her life was going and work? Mind you, this is the first time we have ever been this close to her. Since she’s never allowed us.