Confused🥴

My boyfriends cousin still follows my boyfriend hoes that he had a little fling with when we were broken up for four months. They never even talked or anything, she just followed them cz that’s who my now boyfriend was seeing at the time. What annoys me is that she has the tendency to post him so much on her stories in Instagram and it makes me think so that those girls can see or idk if he asks her to post them so that he know if they still see🥴 should I ignore this.