Husband and girl friends

Back in March I found that my husband was in communication with his ex girlfriend, someone whom he had told me he had stopped communicating with about a year and a half prior. He claims (and there is no evidence otherwise) that she was just trying to catch up and that there wasn't anything inappropriate. I was pretty upset since trust had been broken and he promised he would block her from everything and showed me that he had.

After this promise I found an email from her:

- subject line: "Ex GF in Timeout"

- message: email work? 😂

- his reply: it works!

Ps I found this email in his trash

I called him on it and his response was that he just swipped a Gmail auto-reply and then deleted the email because he just wanted her to go away... 🙄

Then there are the phone records... I asked him if he had ever talked to her on the phone since we had been engaged (we got engaged in Sept. 2017 and married July 2018) He said no. Since we had recently combined phone accounts I was able to look through the bills and found 6 calls during that time each lasting between 25-45 mins in length. I again called him on it, he said the conversations didn't mean anything to him which is why he didn't remember that they had happened.

After many, many discussions between us Im starting to feel like she's not going to be around anymore but now I feel like other females are popping up in his life...

My husband is a doctor so a lot of his co-workers are female. I knew this going into our relationship and didn't have any concerns but now that we just went through this situation with his ex I'm feeling a little on edge.

For example he talks with one nurse via Instagram almost every day. He never tells me he has spoken to her. I only know because I can see his IG account online. They don't say anything inappropriate (just talk about her dog, her Spartan race, and concerts she goes to) but I don't like that he won't say anything to me about their relationship. When I ask how she is I get "I don't know, we don't talk" which isn't true.

Now there's a new nurse that he is using IG to communicate with and again he won't say anything to me about it. Again they don't talk about anything inappropriate. Last night he asked her to have a drink for him and she replied "duh" (side note: we all went to dinner for a friend's birthday but didn't go to the bar afterwards since he was on call). I saw him typing on his phone as we were getting into bed and when I asked him who he was talking to he said he was checking in with his Chief at work, which isn't true, he was talking with her.

So, wonderful women of Glow, what are your thoughts? I'm hurt and suspicious by all of this. Am I being overly sensitive? What would you do in this situation? Thanks in advance!