HSMM - my DS never became friends with his flatmates, one of whom never spoke to him, despite being on same course (DH also tried to engage him in convo once when we were there, in kitchen, he was also ignored)
DS's halls had a drinks reception first night, DS got chatting to others in his block, in other flats, went into city with them, got chatting to another guy off his course, and never looked back. He is part of a large group comprising the guy on his course he chattered to, that guys friend (at school together) and people from the other flats in his block. He's moving out with 3 of them (was originally 8 in group but for one reason or another it became 4).
Perhaps suggests she starts chatting to others online in her block, then she can meet up with them for freshers week?