Ex still cosleeps with 5yo daughter

Background: I was married for ten years to Z. He was verbally and emotionally abusive. It wasn’t until his “anger issues” threatened the safety of our child, and he kicked me out of the house for saying I would like to use the iPad while he showered, that I realized I lived in a crappy place.It is very hard to prove emotional and verbal abuse. I also really wasn’t comfortable saying that had been my life when I left. Because of this we have a pretty standard custody arrangement, although I am the primary caregiver. I have been able to set lots of boundaries because of this. Ex has also been in therapy for several years and takes antidepressants now and seems to be more mild.THE ISSUE: When I first moved out, I transition daughter into sleeping in her own room at age 2. At the time I tried to get ex to also do this when she stayed with him, but he insisted she could continue to cosleep. (Reasons being it was just him and he didn’t want his sleep disturbed, she was the only child he would have, it wasn’t my business how he chose to parent when she was with him). I tried pressing the issue, and he bought a cot for me to set up in my room to have her sleep in. Due to his unwillingness to maintain consistency, it was a long process to get her to sleep by herself, especially when she would return from his home.When he had a gf for a period of months, she had to sleep in her own room. (She has a very nice room. Ex and I had just build a super nice home when I left. I didn’t fight him for any of that. I just wanted to be free. I live in a small, old house. I’m just saying, she has a really nice room and it’s not like the house is scary). Now he and gf have been broken up for almost a year and daughter is STILL sleeping with him.At my house she has slept on her own since 2. It’s starting to weird me out at this point that she still sleeps with him.I have friends who were really into cosleeping with their kids, but they moved the kids out by 5. She is in her last year of preschool this year and starts kindergarten next.He is normally much better about compromising now. I am worried it will be a fight like last time. So I am trying to decide if I should bring it up now.Is it a cause for concern YET, or is she still young enough I should let it fly for now? I will fight if I need to. I don’t want some weird codependent relationship starting. But I don’t want to sharpen blades for nothing. via /r/Parenting https://ift.tt/2NCl7WI