Lay down what is acceptable and unacceptable.

And enforce it the first time she breaks it.

As you are letting her back in a little to easy.

set up what you want and are willing to work towards.

If there is no remorse or learning from her... then she will have figured out that when you step out of line (in her view of how you should behave )she can go sleep with another guy... you correct and she has a soft pad to land in.

Healthy Boundaries. They are your friend.

Flowers always make people better, happier, and more helpful; they are sunshine, food and medicine for the soul.
unconditional love is awesome!