Is it my libra friend's erratic behaviour or is it the girl?

[Ali]

So my friend who is a Libra recently started talking with a new girl in college, he seemed really friendly with her, but often I could clearly see he was trying to be withdrawn, he would also walk her home, the other day he told me he asked her out for lunch the next day, she refused, and said some other day, he seemed so affected by it. Also whenever she didn't respond to his text, as in ignore him, he would always complain to me about how bad he felt. The other day he asked the same girl for her Facebook, she ignored his text, and that's that, my Libra friend completely started ignoring her in university, even if she attempted to look at him, hr would look away.... Wtf? I asked him why, he told me it's better if I ignore her, than get rejected by her. The girl is Scorpio, he is Libra, is that normal?