When one leaves an Abuser, be it a mate or a Boss from Hell, there needs to be a recovery period. To jump from one intense relationship to another is not possible.
One has baggage.
One might not pick up clues or might invent them. One might misread. One can not just drop the baggage all at once. It takes time.Unless one has spent years going over the abusive relationship, exploring and exposing every trick and how it was done, one can walk right back into it.
One carries certain ‘triggers’ and until those triggers are rendered inactive, one might as well have just escaped.
It is not until there is a block of time between then and now in which many other people and events have interceded that one is close to who s/he was before the Abuse.