Mike: ^_____^!!! <33333
Lucy: Would be quiet and mope and stay away from Mike and Sandy.
Paulo: Probably flirt with her unintentionally.
Daisy: Get mopey and clingy and try to remind Sandy about their old friendship.
Abbey: Be happy to meet her. Think she's pretty.
David: Blindly hit on her, even if Mike's there. It would be awkward.
Augustus: "Who cares?"
Tess: "Oh so this is the girl that's between Mike and Lucy getting together fff, I hope Lucy's okay"
Sue: "Who cares?"
Rachel: would want to dress her up.
Jess: Would stare awkwardly.