I tell my spouse that there are WAY worse midlife crises I could have fallen into! I kiss him and tell him, "Be glad it's not a sports car or a golf pro!"
I see this time as an investment - someday my kids will leave and I will need something other than my dear husband's constant companionship to make my days satisfying. By the time the kids go, I'll be accomplished enough to quilt both creatively and relaxed-ly!