I liked Little Grey with Mark too and I like the new depth to his character. Although he does kind of gross me out in real life because the skanky Kari Ann porn tape. EWWW!!!
I would hate for Callie and Arizona to split but it would be nice to see Mark settle down, although maybe he and Little Grey will get back together and they will some how figure out some weird, progressive way for all four of them to have a child. Not likely, but you never know.
Alex is a sleeze. He is totally that type of guy I would hate!!!