Social media

So my husband was curious to see my Instagram the other day and of course I said here’s my phone have at it, well he noticed I liked a few guys pictures that I went to high school with, church with, and yes one guy that I dated like 7 years ago, he’s a family friend so I still follow his sister and she posted a picture, well he feels as a married woman I shouldn’t of liked as many pictures as he saw I did and now he feels betrayed, I’m currently 7 months pregnant and I don’t think I’ve done anything close to betrayal or cheating but in his eyes I have. Should I continue to apologize and delete my IG or should I tell him he’s being ridiculous? Which won’t help anything but that’s what apart of me wants to do.

Help!