How to better understand and control my jealousy with my boyfriend? Particularly with social media?

So my boyfriend is a lawyer. He works with several clients and does property and litigation. A lot of his clients are artists and other business owners. He uses Instagram as a means to connect. There are several artists who are girls that he follows and they follow for client purposes. There isn’t anything going on and 90% of the time I don’t feel jealous. There is one artist who creates textiles but she has a separate only fans page and also posts on her main Instagram almost all nude at times. This bothers me because he follows her. He doesn’t “like” the photos and I don’t find I’m jealous of her, just the fact that he sees a pic of a partially naked woman weekly. Logically I know she isn’t a concern, but it bothers me. How do I address this internally?

How to better understand and control my jealousy with my boyfriend? Particularly with social media?
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