I am dealing with a resurfaced delusion currently. I had a severe psychotic breakdown brought on by a break up and I have been slowly getting past it these last three years. I do believe my ex took advantage of my psychotic breakdown and induced me to slip further into it. I had asked for it by hacking into his accounts though, since I was paranoid about him to the point of harassment. It`s still difficult to accept. I still have to manage my PTSD though and the occasional trigger. Up until three years ago, my paranoia were merely fleeting delusions, like the ones you described. I still develope new delusions even now but they dissipate quickly.