>>31898183A serious /vp/oreon here, just play them in order, but in emulators and play the remakes
>Firered or Greenleaf>Soul Silver Heartgold is shit>Alpha Sapphire or Omega Ruby, you can also play Emerald if you don't wanna make the switch to 3D too soon>Platinum, ignore DP>I've never played Gen V so I don't know for sure, but you should play both, Black or White, then Black 2 or White 2>X or Y, but I wouldn't say that it's too bad to skip them if you played ORAS already>And finally Sun or MoonYou could also play some spin-off games in between, some of my recommendations are the Ranger Trilogy, Conquest, Battle Revolution for the Wii is great but it takes too much time, Duel for smartphones is ok as a time killer, also Shuffle for smartphones or Troized for Ds.
>>31898219I would strongly recommend for you to get into Pokemon not only for your wife, but it's really fun, despite everything it's a great community I'm glad to form part of since it doesn't have a much cancer as Undertale, FNAF or Minecraft; not that I've play those, just some examples of toxic communities full of children.
Pokemon is played seriously by people mostly above 20 y/o, the competitive is good when you get used to it, either VGC which is for the games on the systems, or SMOGON, which is used on Showdown.
Anyway, it will for sure make your marriage more fun and give you an inside on your wife, I hope my advice was helpful :^)