TimeForMe, it sounds like you've decided to make a move for yourself. You question whether you might be running away or have other less-than-good motives. At this point, I think the important thing is that you are taking action. There is a saying: We can act into thinking, but we can't think into acting. Sometimes we're just paralyzed--by choices, by fear, by a certain comfort level, by any number of things that just make it easier to stay and do nothing, dealing w/"the devil we know" than to change things and take a chance.
I understand your feelings of sadness and betrayal; I'm sorry you have both of these things to deal with at once. I can't imagine how difficult and painful it is to stay at your old house w/your pets. I truly do applaud your courage in trusting and listening to your inner voice.
Wishing you strength and clarity. Please stay in touch and let us know how you're doing. ((((Hugs)))) TFM, lots of hugs.