Finally

this little one decided her big girl bed was cool.
She wanted NOTHING to do with it for days.
She wouldn't even sit on it without trembling and crying.
.No Clue why.

We told her the crib broke.

It worked!!!

She loves her big girl bed now.
She doesn't get out without asking.
She plays contently with her 'meemee' (aka stuffed monkey) until I tell her she may get up.
Score one for mama :)
Next step, putting both girls in the same room.
This one may be a bit more challenging...