(Kevin's family isn't as supportive as ANY of them would like, but Kevin discovered, around the time when he announced he was going to be an Obliviator, that it's his life. His mother (and father) aren't exactly FOND of Mike, but they love Kevin.) (There are, however, some mentions of perhaps setting Kevin up with a nice girl from a good wizarding family.)

That would be dear Chiz who walked in on them being ~boyfrands. Then again, to be fair, when one gets up for a middle-of-the-night glass of water, you don't expect to see two friends sucking face like the world was ending tomorrow. But. Chiz can't honestly say he was surprised by it. (Hello, I do have eyes, Michael.) (Shut up, Chiz)