Will a male friend purposely give you bad advice about your boyfriend?

I am dating this guy, but our relationship is still pretty new. We made things official quite recently. I do like him, and I’m not interested in anyone else. But my male “friend” keeps telling me this guy isn’t good for me, is a player etc. When my bf hasn’t done anything that shows those behaviours. He also tells me my bf isn’t attractive when I showed him a picture.

My male friend has come onto me in the past when I was single, but I have expressly told him I am not interested and will never see him as anything but a friend and to respect that. He is a player himself so I assumed he just comes onto everyone (which he does).

He keeps telling me my bf isn’t right for me and to listen to his advice because he’s “a guy and knows what guys are like”, but I don’t really trust that he has the right intentions. My boyfriend wants to meet all of my friends but this male friend says that when he meets him, he’s going to “suss out his real intentions.” He even told me he would message my bf on social media and find out “his real deal.”

Does it sound like my male friend is being unreasonable? I am not close with him because it’s awkward after he tried making a move on me, but he’s in my “friend circle” and now I’m nervous to have my boyfriend meet them. It’s almost like they’re not rooting for my relationship.