You obviously haven't been thru a broken heart with any of your boys yet. I've been there and done that with both of mine and boys take it much harder than the girls do.
I only have sons, so I can't compare the heartache of seeing a daughter go through a break-up v. a son. I don't think it matters. It's a rough world out there for either gender. I just saw a series of FB pics of my 27-yr-old son and his brand-new GF, whom I haven't met yet. They looked so happy, but, weirdly, I sat here at my computer and cried. All I could think of is, "please don't break his heart."