I don't know yes or no but what I think that I know is M_XL so selfish she can sell any thing for good sex I think even friendship doesn't taken in account
Maybe she didn't or can't kick her out but M_XL is a bitch she can make D leave
Finely as I say more then once I think D is not attractive for S she got noting to offer (unless he will do as M_XL wants}