Why would a partner delete opposite-sex contacts from your phone?

I used to know this guy who always contacted me to hang out and go out with his friend’s circle and join his French expats community here, one day he just randomly disappeared which was odd… Because he was always so enthusiastic to meet me.

Now I created new social media, where he found me and apologized that his new wife deleted my account and now he wants to follow my Insta.

Why do partners delete your opposite sex contacts? 😄

And should I let him follow me again? 😄

Updates
1 mo
He traveled to my city with his friends once to see me. But I was busy 😄
Not sure his wife will like us meeting each other. I myself am just totally friendly to him and have always been.
Why would a partner delete opposite-sex contacts from your phone?
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