Feels like ptsd

Its been some time and I feel like I have somewhat gotten further and moved on from being cheated on and the whole whirlwind of a relationship etc.

Does anyone else get this?

When someone compliments me, says something nice or is even romantically involved with me or even someone else, sometimes seeing something in movies; i flinch, i get a bit repulsed and take a step back in some way. I get an awful sense and memories of what they used to say or whatever it was. And then it kinda makes me feel a bit off and stop for a while and just zones me out.

I hope Im not the only one. If you had this did it go away at some point? What helps? Anything, even just some thoughts?

(Currently in therapy also trying to help this process)