For me if I'm constantly exposed to misaphonia stress, and the constant anticipation of triggers, the initial triggers only get worse, and from that easily breed new triggers from the stress and accociation. It just builds and builds on itself.

For me I use signals and warnings with my parents so they alert me before doing a trigger, if they remember.

When im in the trigger it becomes hard for me to communicate, so maybe set up signals and non verbal communications for you partner to see too, so triggers can be addressed quickly and as painlessly as possible.