Oh, right. You've been trying to since you washed up, but she hasn't replied. You definitely thought she would have installed URWORLD by now. Maybe she's already gotten really into playing it? That would be worrying for a couple of reasons. One of those reasons is that she can't actually do very much until she invites a server player, which is supposed to be you. The other is that if she's already started, the clock is ticking.
Maybe your other friend knows something.