Fiance wants me to delete Instagram

okay. so I'm engaged to a great guy. but he does sometimes get controlling and passive aggressive. today we got into it, and he threw movies off the shelf. then while I was addressing how his attitude is irrational, he grabs my phone to see what I'm doing. then he brings up Instagram and how i only post selfies to get guys attention.. mind you we've never had infidelity problems. he just has bpd and gets insecure at times. should I just delete it?