SUBREDDIT: r/relationships
TITLE: 19M confused with 21F's renewed interest
POST: 19 yr old student here. I asked out my friend 21 yr old (lets call her C for ease), and she said no. Here is the sticky part, I asked her out a month ago, and I've tried to move on. Unbeknownst to me, one of her friends likes me and has come on pretty hard to me. 

Soon through a mutual male friend of ours C finds out about it and proceeds to question me about it. Although she rejected me, she consistently asks me about my love interests every time I express interests in any girls. 

Also, while we were out with a mutual friend (R), I joke with R and I tell her that the girl I like is ugly. C steps in and tells R that I tease her by calling her ugly often.

So, does she still have interest in me or is this all in my head or am I getting led on?
TL;DR: 
Girl who rejected me, shows interest in me after rejection, am I being screwed with or just dealing with someone immature?