Just to bring in a "something similar happened to me" pov:
A girl I rather fancied did the same with me. I would go out of my way to spend time with her but she would just treat me in a cavalier manner. Broke my heart everytime that happened. Like, she would say she's busy the whole weekend with school work and I'd later find out from our common friends that she went to a movie with some others who weren't even as close friends as me.
I gave up on her. Still cared a lot, but didn't want to put up with all that. Now we're friends again but I have some reservations from her. I think she regrets but it was all for the best.
Any friend of mine who'd rather spend time with an average jack or jane, is not worth my time.