My brain going full protection mode when there’s no need to

I (19f) has been dealing with CPTSD for a few years now. I’ve been treated for the big part, I was under meds for a long time but I became med free during the summer. I started dating someone (19f) 3 months ago and everything was great. Then suddenly, for no apparent reason, I started feeling extremely anxious, with intrusive questions such as “you should break up now” “you don’t really love her you just enjoy the attention” “what if this feeling persists on” and I hate it. I love this person, and I want to be with them. These thoughts make me extremely anxious and it’s difficult to live properly because of them. I reached out for help and got an appointment with a therapist. She’s great, and told me that I already did a big step by asking for help. She told me that since my traumas happened when I was still developing, my brain associated love with pain. A lot of the situations where I received love were a “I love you but I hurt you” situation. So in order to avoid that again, even if now that I am in a healthy and loving relationship, my brain just tries to keep me away from my partner by going full alert mode. I was wondering if anyone else ever lived something similar, and if they have tips to get out of that state. I found out that ocd meditation videos helped a lot, but I think hearing from people that it will pass is also helping. I was so happy to be with my partner, being with them, embracing them etc. I just want to keep that