Is waiting (quietly, not voiced out to H) for H to choose either the family or OW, part of DBing
"Waiting" in the sense of not moving forward with your life, or having H's decision be the contingency that makes your life for you - then, no, that's not the essence of DB.
Having patience, understanding that these things take more time than you'd like, giving that time and space without pursuit, not permitting your own impatience to ferment and build into frustration and anger, in that sense, that's very much part and parcel of DBing.