Moving right along...
These questions are interesting. Yes, naturally mouse is in a relationship with Daddy, who owns mouse. There have been other relationships (if you must define them that way) but the longest (aside from her time with Alpha) has been with Omega. For nearly 25 years he's been the one she's pined for -- loved and ran away from. Never once thinking that we would one day be together.
The time with alpha began ok -- in fact he did share many philosophy's that Daddy has -- without it becoming abusive. The time with alpha ended very badly with mouse not really released and not sure where her place was. The PTSD was horrible and has taken her a decade to overcome. Even if she only really began dealing with the trauma after she and Daddy became a couple.
The common thread is that mouse is happiest when she is controlled (in a healthy way). When her autonomy is carefully limited. It does make for a happy mouse. Even if he does make her inner feminist scream.