Should I try to talk to her

My break up happened almost a week ago and at first they told me they would like to stay friends but two days ago they left me on delivered and haven't opened the message I sent 3 days ago, I was the dumpee. It wasn't something overly suffocating either and I always asked if they're okay with me messaging then. I've been looking around different attachment styles and found out that my ex is most definitely and avoidant and I'm anxious attacher. I found out where we were talking past each other and I think I got an idea of how to make it better. I feel like I might be delusional and I don't know what to do since I don't want to mess it up even worse than it already is. They wanted me to give them space so I'm thinking about waiting a week or two. Any opinions?