My wife and I can't play on the same game anymore?

Hello,
Quite often after a long day my wife and I would have a game of Creep. We tried the other day only to find we couldn't join the same lobby. Is this to do with people having multiple accounts for easy exp? Seems a shame the rest of us who do use the game legitimately suffer.
Thanks.
Quite often after a long day my wife and I would have a game of Creep. We tried the other day only to find we couldn't join the same lobby. Is this to do with people having multiple accounts for easy exp? Seems a shame the rest of us who do use the game legitimately suffer.
Thanks.