Albeit you're describing an away European game, (and therefore the types of fan over there vary slightly from back home) I think you've just described the fragmentation that has been creeping in at WHL for a few years now (the 'how Tottenham are you? bit rings so true!)
FFS, we're ALL Spurs... whether it's your first ever game and want to have a New design cockerel painted on your face pre-match, or have an ageing, faded pre-re-branded cockerel tattooed on your neck, we're all one and the same!
(oh, except the glory-hunting Sky-Branded newbies, only there since the Champions League season... now they CAN go fuck themselves!!)
It's an awful feeling when you finally realise that it's not solely Gooners who are cunts... SOME Spurs fans are proper twats too! ...shame you had to go all the way over to Lyon for it to dawn on you though...
I've had my suspicions for a few years now, just by popping into some of the pubs around WHL pre-match!