Friendles are worse but even qualifiers I maybe check the bbc mobile app to see the results, and I really don't care either way.
I enjoy the Euros/World Cup but I just can bring myself to feel passionate about the England team one bit. Not from a bitter, cliched anti-English perspective, I just don't associate myself with groups in that way. I don't know why Liverpool is different. It doesn't ruin my weekend anymore if they lose because I'm not 15. Maybe it's nostalgia, maybe it's harder to will players on to do well when they're paid and live the lives they do. I suppose weekly competition between friends and co-workers seems more innocent with club rivalries, whereas country vs country seems a bit more sinister.
Something about the national team brings out the idiot in people. Never watch the games in pubs, brings out twice the idiots after a few pints, and the less said about seeing women who shout 'fking come on England' or posting it on FB the better...
I generally support the underdog in bigger events. Means more to the players and their home countries.