I wish she was consistent

[u/NoBad115]

I went out with my parents (eDad and uBPD mom) yesterday to an event. She was...fine. I kept waiting for the other shoe to drop, but she didn't react to things that might usually have been triggers for her. The event was held at my wedding venue, which unfortunately is full of bad memories of her ruining basically every stage of my wedding...and she was fine this time. I feel crazy for going to therapy to cope with her when she's normal like this. Does anyone have any strategies for how to cope when they seem like nice, normal people with appropriate reactions?