Husband’s ex from 7 years ago contacted him out of nowhere they spoke redflag?

My husband & I have been together for 7, & we’re been doing really good, just had our 2nd baby this past Nov. randomly, about 6 days ago he comes to me after work & goes “guess who contacted me. My ex” & immediately I felt a pit in my stomach, just not something I’d expected & safe to say she was pretty bitter when him & I first got together. He told me they had spoke on the phone catching up while he was driving bc he drives for work. Catching up about us having kids, being married, on her love life & how her boyfriend recently left her alone in Cali.. & things that have went on since they haven’t spoken. (I don't know I didn’t like this detail. Is this why she reached out?)

him and I spoke briefly about it & I tried my best to be optimistic since it’s been awhile, but I just couldn’t shake this feeling. A few days went by & I saw on our phone company she had called him 2 days in a row on his way home for work. Again it made me uncomfortable bc maybe the girl has no one but it seemed she was getting too comfortable speaking to him bc now this was 3 days in a row..

when he had came home, I spoke to him & told him how it made me uncomfortable, & surprisingly he said “i understand what you’re saying I get it, I just want you to know before we even spoke the first time she set a boundary bc she knows I’m married” as much as appreciate, it almost felt like she was already overstepping a boundary she set bc why was she calling him after work each following day. She even called during this conversation but he didn’t answer.
I told him I just really wasn’t comfortable & would prefer they didn’t talk. He didn’t seem thrilled but he said “if u don’t want me to talk to her I won’t, it’s not worth the fight. I liked talking to an old friend but If u don’t want me to talk to her & block her I will.”
I felt he was a little irritated tho, he never deleted her info or blocked her either.

should I be worried? Does ex have pure intentions or is this weird?
Was I wrong? Opinions pls

Husband’s ex from 7 years ago contacted him out of nowhere they spoke redflag?
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