Yeah, Roy/Riza is a pairing when I am totally an OTP about, yet I have no problem with Riza with other people - with either the 'we just never went that way, but we still love each other in our military, can't talk about it way,' or 'we dated it didn't work out, but no one noticed caused we kept it on the downlow and nothing changed.'

Yep. Roy x Riza. Totally OTP regardless of whether they're having sex or not.