Is my boyfriend preoccupied with admiring other women?

**TL;DR:** My boyfriend (soon to be ex) can't stop checking out thirst traps online but still expects another chance in our relationship, despite my loss of trust in him. I've been with my boyfriend (24M) for a year now, and while he's respectful, kind, and supportive—essentially my best friend—he can't seem to stop following women who post thirst traps online. I first noticed this when I saw he was following over 100 OnlyFans accounts on X. When I brought it up, he told me he had been following them long before we started dating. I explained that it bothered me and asked him to unfollow them, but he only did so partially. After three attempts over the next few months, I finally got fed up and blocked him everywhere. As expected, he found another way to reach me, and since I still cared about him, I gave him another shot. Since then, we’ve struggled with my trust issues, and I worry he could still be checking out other women without following them. He insists that’s not the case. Then, just after Christmas—when I introduced him to my family for the first time—I found out that he still engages with this behavior. He has two Instagram accounts; while he claimed he doesn’t use the old one from high school, I discovered he was sending posts of women from his main account to that “unused” page. I know there are countless beautiful women out there, and his interest doesn't diminish my self-worth. However, it’s hard to understand how someone can genuinely love and respect a relationship while still indulging in this way. With sexual content being so easily accessible now, I wonder if it’s just something men will always do. When I ask him why, he calls it a “habit,” which I can't buy into. I’d love to hear perspectives from both men and women on this. Is it something men will inevitably do? Can you truly love someone while still looking at other women in that manner?