Some men are really disgusting

TLDR: I've been sexually objectified. Please don't share in social media, I don't want to talk to these disgusting adults.

I have a social media friend, a bestfriend of a previous co-worker. I don't know him. We've never met personally. We were social media friends for years and had no issue. We don't interact at all, until a few months ago.

His posts and stories kept on appearing on my feed, same with his bestfriend. Then, he started randomly reacting and commenting to my shared posts at stories. I would sometimes like his shared posts about scenery like forest/beaches but that's it. He commented on one of my stories about my travel, I replied politely. He kept on randomly reacting and commenting on my stories, but I would just left it seen. I don't know him personally, so I don't really engage.

His bestfriend kept on sharing a post about an anime character with big front, which I guess is normal nowadays. There was this one shared post that he commented on. The comment was so specific about my story but I just dropped it as coincidence. The thing is I have big front, but no matter how conservative the clothes I wear, it's noticeable.

The bestfriend kept on sharing posts about big front. I just kept on scrolling. Until one of our previous co-worker chatted me asking if I dated the guy. I said no and that we never met personally. She's concerned because she saw my name in one of the deleted posts. She was able to screenshot the comment with my name. That's when I knew, I've become a topic in a boys talk.

I automatically blocked both of them. I just feel very disgusted. I kept on asking myself why this happened. I never talked to them, I don't know them. But why did they act like I'm a sex object? Why?