Maybe the meds are not working well enough. I used to suppose that my wife is concealing our money for herself and conspiring against me someway all the time. I was angry to her all the time and she couldn't figure out why because i never told her. Just kept observing her suspiciously. Nowadays i recognize it's the first sign of me sliding towards mixed state. I realized how ridiculous it was when i was on Seroquel. After quitting Seroquel i was off meds for a while and these thoughts came back, but this time i realized that it's only my imagination so i cope with it quite well. I don't know if therapy would help, i have no experience. My thoughts were so strong i doubt if it would have worked for me.

btw welcome to the forum