help understanding my MD fiance

my fiance experiences maladaptive daydreaming. she's mentioned to me before on multiple occasions how sometimes she'll just walk around the house when she's alone doing nothing but daydreaming. Sometimes she daydream while also listening to music. She says she'll do this for around an hour give or take. When she's talked about it in the past I recall her saying things like she lives out "fantasies" in her head. I see nothing wrong with it as long as she tells me she is okay and feeling fine. Recently, though, I got to thinking about the name itself "maladaptive daydreaming" which made me wonder if I should be doing anything to help her change this habit.

also in truth, I had never heard of MD before my fiance mentioned it.

any tips or advice on the subject would be appreciated thank you 😊