If you are being shuffled around, then you should feel shuffled around.
Separation is where you see if it works better with the adults in two different homes.
First group impressions can mask a lot of individual variations in the members.
All of us assign different values to things, and not all of those values are going to line up with others'.
You don't want to be with someone who is already not getting from you what he needs emotionally.
I have no quarrel with people who lack the skill or temperament to care for small children.