Is it possible for OCD to go from harmful thoughts or paranoia thoughts to being completely about how my wife is cheating on me or going to hurt (poison me, attack me in my sleep)!?

Anyone experience this? I have had OCD for past 9 years, over the course of that time I have had multiple themes from POCD, false memory OCD, contamination OCD the list goes on. Right now I am struggling with the thought that an ex is going to harm me, my family and fiancé. I am about to get married and my fiancé makes me so happy I am in love and finally found the person that truly completes me. However, of course OCD latched onto that. My OCD convinces me that if my ex finds out I’m going to get married that he will harm me and my family. The other day I did a compulsion and looked at my blocked list which my ex and his family and friends are on, I quickly glanced at their little profile pics to make sure they were okay and that they weren’t planning on scheming to harm me and my family and my fiancé. Immediately after I did this I started to freak out, my OCD made me think I was a cheater and that I secretly want to reach out to this ex. I was recently diagnosed with PTSD from that situation because I went through a traumatic experience with this individual and this is what had lead me to believe that he will harm me. Anyone else experience similar?

Themes constantly switching. I’ve been suffering with real event ocd the last year and am currently in therapy treating it. it’s nowhere near as bad as it was last year and it’s felt like a nice break. there’s days where it gets bad but i can’t compare it to the stress of last year. However i’ve noticed every time i overcome a theme a new one hits me out of nowhere. i’ve suffered with ocd since i was 9, and ive had multiple themes. i’m in a 2 year relationship with my partner and it’s amazing. she’s probably my second proper relationship due to the fact my first relationship gave me so much fear to get into another one as i was cheated on, and needed a few years to get over that. i kind of guessed that ROCD would creep in at some point as it just felt inevitable. anyways, i know my partner is not cheating on me, she’s beyond loyal, we are so so in love but i think due to that first relationship i had, being cheated on really messed with my head. it’s like my brain is telling me my partner has someone else even though i know in my heart nothings going on, and i trust her with my life. i also think because im in the happiest relationship of my life, anything that would indicate loosing her makes me feel sick and riddled with anxiety. and i know that’s completely normal for everyone. i think the most frustrating thing is, is knowing that my OCD has finally crept into my relationship which is something i never wanted it to do. this is a brand new theme and i have no idea how to treat this. i will speak to my therapist but if anyone has been through this theme and any advice in the meantime i would really appreciate it :).

I am in a relationship but I cannot stop getting thoughts about this new coworker I met, my mind convinces me they are so attractive and so great and I hate it so much. My current relationship has its imperfections (as every one does) but I am so happy with her and have always been so loyal. Would OCD target those imperfections and exploit this situation? Additionally I believe I’m feeling ROCD fears of cheating but I know in every opportunity I’ve talked with other women I am loyal to my partner by bringing her up. Does anyone experience the same thing? Is this really OCD or other subconscious intrusive thinking?