MiC never showed her with any other boyfriends, bar Sam and Jamie. Hard to tell really! She seemed much more physically into Sam, and very flirtatious and complimentary of his body. But he obviously fell short in the clingy personality, and creepy, overbearing sister department
Sophie seems/seemed to to have a massive air of "I'm better than you" with both Jamie and Sam. Especially Jamie. She talks to him like he's lucky to be with someone *supposedly* as drop dead gorgeous as she seems to think she is.
Prior to the show, she dated Harvey for five years. Now he is physically what I would regard as her type, but he's bit dead behind the eyes and rather slow on the uptake. But hey, she still stuck with him, then ended their relationship when she went on the show, which says a lot about her. Harvey said this himself, and how she dropped him like a hot cake as soon as Made in Chelsea came calling.