I'm with you.
Several months ago, there was one of those quizzes: which candidate are you most aligned with? The quiz result said that I agree with 97% of Cruz positions, 75% of Trump's. However, I made the calculation that Trump has a long record of getting things done, and his business skills are needed to start trimming the bloated government. So I leaned toward Trump, but would have accepted Cruz.
No more. I've realized, thanks to Cruz's underhanded tactics (telling voters Carson was out when he wasn't, not giving voters any voice in CO, etc.) that I can never support Cruz. He's toast, and he burned all his bridges.