Zeeaire: I often feel lonely because I have no one to play games with, in fact, I have no one to not play games with, neither, so yeah :(
When I was younger my cousin always played games with me, like Silent Hill, Pizza Connection, Might and Magic and so on, but now she doesn't visit me anymore or twice a year because she is only busy with her boyfriend and her studies and if she plays something it's a (in my opinion shitty) game like League of Legends.
Zeeaire - there is a sticky thread subject I toy with and observe, with pelaaja.fi -a journalistic source deserving of their press cards, as Finnish press mostly does, regardless of specialisation: "seeking co-gamers."
I have thought, seriously: I would love to co-play Divinity Original Sin - only, I am not very good with turn-based combat.
I have thought, fancifully, about ME3 war assets.
I had the same thing with my bro - us gaming together in our tender childhood was glorious and paved way to Baldur's Gate for me, and it seems, Nethack for him.
I suspect you are just missing the common hobby - bit selfishly, eh - when you should (I think) delight that someone you love has come to love. There must be an equivalent to find co-gamers.