I only know that I felt the need to share that with you. I imagine your "big thing" is Cassie. That's where you concentrate but that's not where you need to have your attention because she is just a diversion from the real problems. One thing is that it means to keep working on you. But only you know the deeper issues of your sitch - the details - and those are what you should pay attention to.
Sorry to be cryptic. I don't mean to be. I just don't know anything other than the fact your attention is on the wrong thing.
Cassie is not the problem. She is a symptom. Like all OM/OW.