Is it wrong to ask my husband to delete his ex hookup off Snapchat?

So, some backstory.. my husband & I are newly married, just had a baby & everything’s been good. Until I started getting uncomfortable with this girl who he had once dated without the title for awhile & has had sex with in 2019 right before us. So this girl got into a relationship around the same time him & I did, & she didn’t talk to my husband basically the whole time they were together. Somewhere In the middle while she dated someone else, she added me on Snapchat & we talked here& there but eventually fizzled out bc I found out they hooked up & she didn’t tell me & it got weird. Now moving forward to this October 2021, I had my baby , we’re happy but She started coming around again after her & her boyfriend had broken up & started to be friends with my husband again. I didn’t care at first, until I saw them talking practically all day on Snapchat. I kept pushing it away bc I didn’t want to come off as insecure & I trust him. But then when we were recently in target without our baby. Spending time, drinking Starbucks etc he kept stoping & was occupied on his phone snapping her back, that was the last straw & quite frankly upset me bc we don’t get much time without baby & here he was occupied talking to her. Especially since he told me he was letting her vent to him. But I was drowning in postpartum depression & he wouldn’t let me really vent when I expressed I needed it. When we got home, I told him how I had felt that “she was an ex, you hooked up.. why is she leaning on you in her breakup? It’s making me uncomfortable” & I told him it would make me feel better if they didn’t talk or had each other on socials bc it was our new chapter, why does an ex need to get close now? This chapter is about us & it’s getting to close for my liking.
Basically he doesn’t think he should have to cut her off, even if I’m uncomfortable & he says he’s not doing anything & they’re just friends which I believe. Just don’t like having her around. pls give me any opinions. Lmk
Updates
+1 y
Also, an update. We then had agreed & compromised on him talking to her less, and although he agreed that didn’t actually happened. Which resulted in me again being uncomfortable & us having the same conversation today that I don’t really like her being around.
Is it wrong to ask my husband to delete his ex hookup off Snapchat?
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