Janet is in the Air Force and I've just watched Rites of Passage.
Spoiler gap:
I think that there is a small hint at the Danny/Janet relationship and I think that the scene where he tells her that he's there 4 her is soooo sweet! U could sorta see a few sparks when she was about 2 leave and he held her back by touching her hand. It is the only relationship that would make sense with Janet coz Jack loves Sam and always will.
(If ne1 dares 2 disagree, just remember that Jessa and I r the Evil, Scheming Teenagers. 'Nuff said!)
Teal'c has his wife ( I think, unless she died or sumthing and he also had Shaunock.) and Hammy is waaaaaay 2 old 2 date ne1 in the SGC except Catherine! So , as u see, Danny is the only possible candidate. Plus, they look cute 2gether!