Eh, I've found highs just as good in many other games since then. Currently getting them in Warframe, started playing a couple of months ago and having an absolute blast. You'll never find the exact same "high" from something in anything else, let those moments be and welcome new ones. You have that memory, it'll never go away and you'll always be able to get some of that feeling from the memory itself.
It's the same with love, some people spend their whole lives trying to find a specific kind they once had, and by doing so they push away all the new kinds that are able to become just as strong and important.
Warframe is certainly one of the more fun games I've played recently but it doesn't come close to the Halo lan party days or WOW raids when I was in college. I don't think that's a failing of Warframe though. It's just me being broken inside and having a hard time getting friends together anymore.