That Alex and Pat stuff is terrible.
1) The age gap is just five years. Not great since they knew each other since birth, but quite passable otherwise, I'm sure we know bigger age gap couples in real life.
2) Pat's dad and Alex's mentor Tom was cousin to Alex's mom, so Alex and Pat are second cousins. This isn't really passable, and only "passable" in the barest, most coldblooded sense because we sadly still have cousin-fucker cultures around in rural areas or very homogeneous ones like Japan itself.
3) BUT, Alex and Pat grew up as de-facto siblings, which alone SHOULD kill any bonding to one another that isn't sibling-like. Especially since much earlier official statements even in recent years made it clear they saw one another as siblings.
Capcom MIGHT'VE gotten away, BARELY, with just one of those points if none of the other two existed. Just Japan being Japan for better and for worse, right? But all three together? Jesus Christ how horrifying.
Sadly, this might've always been "planned" to be their relationship, since the ancient Street Fighter plot FAQ from the early 00s claims there's an official art from the SF3 days where Alex embraced Pat lovingly, when they were much younger. Think about that. So all this time this relationship was meant to be canon all along, and the timeline moved forward enough we saw the terrible end result.
Way to go Capcom...