I'm actually rather behind on the FMA manga, but yeah, I think there's a little more basis for that pairing.

I'm sorry to scar you. However, please consider: that was the gateway anime that taught me anime doesn't have to suck, I love some of the plot that they do in the anime, (Lust, Scar, Winry's parent's death, that scene with Haylate licking Riza's toes....).

Plus, while I love the way the author writes women, I think she over uses 'cartoon humor' - e.g. there are places where I think it would play better if she just had a more realistic drawing instead of a chibi-cartoonish one.