About a year ago, my long-distance girlfriend of 2 years broke up with me suddenly. I was hurt and upset, and still harbor some resentment, but I've moved on. She reached out to me about a week after the breakup, and I informed her that I don't feel ready to speak to her.

I'm about to deploy, and in the process of cleaning my place, I found a box of things she gave me (I packed it all soon after the break up). Most of the stuff I don't mind getting rid of (throwing out photos, donating books to libraries, etc.) but the one gift I'm struggling with is a blanket that she knitted me. It's incredibly nice, and I know it took her 100 hours. I planned to donate it, but realized that I would feel bad about something I put so much time into just being discarded.

I haven't spoken to my ex-girlfriend since I let her know that I didn't wish to speak with her. I feel like I should reach out to her and ask if she wants it back (it's not personalized or anything). I don't intend to start catching up or anything; my concern is that it is rude to be returning a gift like this. Should I reach out to at least see if she would want it, or would it be best if I just got rid of it on my own?

tl;dr: I want to get rid of ex-girlfriend's nice blanket that she made me. Not sure if I should ask if she wants it back, or just get rid of it.