Should i make her a bridesmaid?

One of my closest and longest friends and I are going through a difficult time right now. Basically, she is friends with someone who did something truly awful to me. She thinks that what they did was wrong, but still wants to be close with them. That has caused some tension between us. I'm not sure our friendship will be the same. It's hard for me to be close with her knowing she's friends with someone who significantly hurt me and is capable of disgusting behavior. Right now we've taken a bit of a step back as friends and I'm not sure if I should make her a bridesmaid when our friendship is up in the air. My wedding is about a year and a half away and I know things could change for the better or for worse. It's hard to know what to do. I don't want to regret it if we eventually make up, but I also don't want to have to remove her as a bridesmaid later on. Any advice?