The rocker is the only single member of the hit US rock band and he was spotted enjoying the female company at the recent Glamour Women of the Year awards.
He then decided not to return to his London hotel with the rest of his bandmates.
According to UK newspaper The Sun, he said: 'There's no point me going back right away, I haven't got a wife.
'Now they're all married, I haven't got any competition. There are no fights over who has who any more so, as you can imagine, life is really tough for me right now.
'But I kinda miss it. I'm a competitive guy so that was part of the fun.'