Insecurity Guidance please?

It makes me feel uncomfortable when my boyfriend is interacting a lot on social media with women. Some he knows personally and has slept with and others he hasn’t. I respect his privacy and won’t go through his phone but should I say anything? How do I even start that conversation or should I just work through my insecurities on my own? It seems like a petty thing to even bring up and possibly cause an argument and I know he already knows how I feel about the ones he’s been with so why even extend it to people he’s probably never or even never will meet

Insecurity Guidance please?
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