Detachment IMO is a process and it takes time. IMO you can be sweet as honey, but will be seen by WAW as a plan B at best, if everything else fails, if you know what I mean. I don't want to be plan B to anyone, I deserve somebody wnating to be with me, no someone who "settles" for me, because her A option is not available.
Believe me, I know where you are talking from and it [censored] big time. It's a terrible thing to be concerned for someone who does not give a rat's ass about us and hoping they will come around.
Do not preoccupy yourself with how detached should you get, you will know when it's enough, and it it enough, when it stops hurting and it takes months to get there...