Wife Domme?

So in the last 9 years i have known my wife, prior gf, we are very open about who we are when we met but i think there was always that secretive porn side of me i wanted for myself and kept that hidden like Gollum with “My Little Precious”. So fast forward to now and we are just shy of 4 yrs in marriage. I think my wifecis trying to spice things up to possibly save our marriage but really i doubt it will do much than to open it up a little sexually. But She seems more interested in play and getting bedroom items to help with fulfilling a need of Hers. I have never truly been in that lifestyle but have always admired the commitment in it. Do i need to worry that She is going to take her anger and frustration out on me and i might get hurt?

i am worried given she is going through the loss of her mom{stepmom) but she raised her. Then i came out as bi and queer two months ago. And people ask how she is doing and that triggers her fears and resentment all over again.