It's nice to be a man - your friendships just grows and when you meet each other after couple of years - it usually feels that it was like yesterday you last met each other. And that happens since childhood.
But women - it's different. Close friends will be almost always close to each other, but that needs work to keep the friendship fresh. But if women meets each other after couple of years - it is really difficult to get along again - and it depends also how they got along before or didn't they, really. Women change all the time, their life changes, their relationships changes and sometimes they change themselves so much that they are total strangers to each others when they finally meet.
But sometimes happens miracles and it's nice to meet together both women and men that you've once learnt to know. Maybe it happens with BB4 "gang" someday, maybe not. But experience of being a member of a Big Brother House makes people usually psychologically closer to each other because no-one of us here outside can't really understand what it is like to be in that House, so there's still hope to reunite. But it's hard to also think that BB5 members would meet each others some day.
