Can’t decide whether to break up

I have been mentally flip flopping between leaving my fiance and staying. Some days I think I can do it and others I am just so done that looking at him makes me disgusted. This happens every day. We saw two counselors that didn’t work out because of insurance reasons but they thought it could be saved...we’re waiting to see someone else, but in the meantime I am so tired, so frustrated, and so sick of feeling this way. I know that maybe later today or tomorrow I’ll feel better and not be thinking this way. How do you decide when you’re done or not? We have so many plans and bought a house...