It must be interesting for BB producers trying to predict which HMs will get on well with each other in the House and which ones will stay friends afterwards. I wonder how often their predictions (if they make them) are completely wrong. There have been some very unpredictable friendships (and couples) in and out of the House since I've been watching it.
I suppose if you think about any situation where you meet people for the first time in a group, such as at school, college, Uni or whatever, your friends very often end up being the ones you least expect. My two longest standing friendships from my nurse-training days are like that. We three were very different from each other, one outspoken, outgoing, rebellious girl with rather odd dress sense, who never stopped talking; one quiet, creative and studious-bordering-on-nerdy daydreamer; and one very affectionate, girly girl who was into clothes, make-up, boys and parties. (I'm not saying which one I was!) We all had different interests and backgrounds, but ended up sharing a flat - and a few adventures - together for three years, and 30-odd years later we're still really good mates even though we all live in different continents now.
Blackrock, I'm not at all surprised that Jonty and Carole are friends. She was always very supportive of him in the House. I didn't like Carole much either - sometimes she was so infuriating that I felt like throwing things at the television. Come to that, I have friends who sometimes infuriate me so much I feel like throwing things! I'm sure we can all think of examples among our own friends. But they're still our friends and we love them even when we don't like them every minute of the day.
As to how HMs are perceived by 'us', I'm pretty sure that being in the House brings out the worst, and the best, and the downright surprising (even to themselves) parts of their personalities, and so it's almost inevitable that most of them are different outside to how they are in there. How many times have you liked or disliked a Housemate while they were in the House, only to change your opinion completely a few days or weeks or months later?