What Do These Have In Common?

[debris4spike]

I have been working on some icons - and reminded myself of a pattern ... sop, other than being my personal OTPs - what do these have in common?

Dr Who - Matha & Dr 10
Torchwood - Tosh & Owen
Vampire Diaries - Damon & Elena
Stargate SG1 - Sam & Jack
BtVS - Spike & Buffy
Dresden Files - Harry & Karin
Moonlight - Mick & Berth
Star Trek, Voyager - Capt Janeway & Chakotay

Yep - forbidden and/or unrequited love ... MUst say something about me personally!