It will end up pissing you off further down the line if you go down the LTR route with her.
Those men probably want to fuck her but don't have the game, or think the opportunity will arise in the future.
They might be men who are far away that she will never meet, but doesn't sound like it in this situation.
In my own relationships, and those I've observed, this type of situation nearly always leads to a problem of some kind.
The woman, in her mind, rationalises that they're providing a straightforward social function. A friend to her is not how a friend is to you. When her situation changes, she will just modify her relationship with them to suit her needs, so if she's having a rough time with you, she will go to one of her male friends for support.
The other posters(your friends) have advised you what to do and how to proceed. They're telling you to maintain a strong frame. Tell her you will not LTR her, tell her she can go if she doesn't like it.
Those men probably want to fuck her but don't have the game, or think the opportunity will arise in the future.
They might be men who are far away that she will never meet, but doesn't sound like it in this situation.
In my own relationships, and those I've observed, this type of situation nearly always leads to a problem of some kind.
The woman, in her mind, rationalises that they're providing a straightforward social function. A friend to her is not how a friend is to you. When her situation changes, she will just modify her relationship with them to suit her needs, so if she's having a rough time with you, she will go to one of her male friends for support.
The other posters(your friends) have advised you what to do and how to proceed. They're telling you to maintain a strong frame. Tell her you will not LTR her, tell her she can go if she doesn't like it.