It may not seem like it now, but you got the best part of the deal. Also heed the advice of those who tell you to get a good lawyer and protect your assets. Being Mr. Nice Guy will just bring you more grief. If you are the one leaving home get a legal separation first, otherwise she'll claim you abandoned her.
If this were an amicable breakup, I'd say otherwise, but that doesn't seem to be the case.
Actually, it is. No worries. Plus, my daughter has decided to stay here with me until she finds a job and saves enough to move into her own place. So, I won't be alone as soon as I thought.