Is it weird for me (F24) to tell my boyfriend’s (M24) friend’s (M24) girlfriend (F24) that she is dating a big loser, in other terms?

I have been dating my dream man for about a year. He is intellectually stimulating, funny, generous, kind to strangers, and he is extremely loyal. That being said, he underwent a lot of maturing in the first few months of us knowing each other, and he is still has a few secondary friends who are, although very nice to me directly, very immature.

One in particular stands out to me. I will refer to him as Liam. has been very nice to my face and has even gathered some gifts to welcome me in when I visit next month, as my boyfriend and I are long distance. He has drunkenly told my boyfriend on multiple occasions to cheat on me (since we are long distance). His floor is made up of dirty laundry, rotting fruit and moldy dishes are scattered through his apartment. Recently, he got a girlfriend, whom I learned Liam heavily implies he does not want to be around.

Last night, Liam made an appearance at the bar my boyfriend was at and continuously encouraged him to go to the strip club with him and some other guys after they were all drinking. Of course, I know all of this because my boyfriend and I keep no secrets, and he called me angry at his friend’s behavior, as it was impacting the night

Anyways. During our phone call, Liam found my boyfriend and took his phone. I asked him “you’re going to the strip club when you have a girlfriend?” He responded, “well, my girlfriend isn’t a stripper, so.”

I asked my boyfriend to invite both Liam and his partner to his birthday party when I visit next month. I am really itching to tell the girl all the things Liam has said to me about his relationship and my relationship. Even if its in a roundabout way.

Is this not my business?