I don't understand. How can a 38H-cupper be an ex-? 
Zook, have you been simply and consistently lucky in love?
IMH experience, H cups do not necessarily imply compatibility, heh, or even sanity.
In fact, I suspect that one can even make a case that bearing H cups could be detrimental to the owner's sanity - the inevitable extra attention, whether desired or not, appreciated or not - adds pressure that maybe not everybody handles well. I've seen big boobs cause swelled heads, self-loathing, and various combos in between.
Doesn't always affect suitors or significant others well, for that matter - that from personal experience.
I agree that when it works, and when everybody is fairly balanced, it's a beautiful thing. But people being people, shit happens, sometimes.
Eh?
-D'Artagnian
Sorry, I know you were speaking rhetorically, but I thought it was a good question, worthy of a real response.
Afterthought- maybe we should start a thread about this: "Personal accounts of tragedy and pain around big boobs" - after each post, we can all commiserate...
Free support group and therapy...
Not just for guys... all inclusive: experiences of busty women themselves, and/or the lesbians, hetero males, and confused gays that desire them...