it would be very difficult destroying something youve built.
She does not seem to have any trouble destroying what you built by giving you an ultimatum. If you don't live up to her ultimatum, she is willing to throw the baby out with the bath water.
And others are right, this is not being said because we are bitter, it's because some of us have lived it. Buf it you want to go down the path that many others have already, go for it. What you have built to this point won't be anything compared to when your life is half over and you see the things here were true.
Best of luck whatever you decide to do.