Alex and Mel make a very handsome couple.
He said that she was the BB girl that he fancied in the house I think, and she seems intelligent and beautiful so a good choice - as you would expect from Alex.
I think its good for him to spend time with another housemate. Someone who has been through the ghastly BB experience, that he can talk to about it, and who doesn't pretend that it was wonderful, will be a good companion for him. Good luck to them both I say.
And lucky Mel indeed.