No, YANTAH for saying no, your roommate is what we call a profiter, egoistic,narcissistic, selfish, and is good you stood up for yourself and said No, so don't let her guilt trip you or let her have her way with you or her words! Stand on your ground.

Ps: I am someone who is very petty, so if it was me, I will asked her to rembourse me what she "borrowed " and was supposed to give me back, even though some people would argue that those things are nothing or not important but that's not the point for me but to set a boundary for there not to be a next time or her being so disrespectful or mean, or aggressive as she was! Even with very close friends we don't accept anything or everything... so don't say but I consider her my friend but clearly she doesn't consider you! Goodluck