I couldn't agree with you more I hate the relationship between her and Cassandra. I completely understand that the young girl would get attached to the savior figure. However for Sam to reciprocate seemed really out of character.
That was a great Jack/Teal'c moment.
TEAL'C: I still do not understand this black hole.
O'NEILL: Well a black hole is this really...big thing. It um...well basically it's uh...massive...hole, out there.
TEAL'C: I see.
O'NEILL: What happens is, everything gets sucked into it, even light, that's why we can't see it. Just gets...sucked in.
TEAL'C: Thank you.