This has been my fantasy for decades. But that's all it is, a fantasy.
I realized that women prefer big bulky men, so I started working out, doing martial arts and crossfit. I got a couple of girlfriends, including a 50 year old woman. But, the desire to be "frail" again is still there, the desire to meet a buff girlfriend is still there. I still want it so much.
But it's just a fantasy and nothing else, better to face reality and see things how they actually are.