Okay, does Cuddy know that House loves her or is she just playing hard to get? I don't get it. It seems as though they are frozen in a state of confusion.. And why does she not just acknowledge this if so?

1) It is a tv show, so they probably want to stretch the storyline for as long as they can to keep people watching.

2) There are plenty of people who would argue that House is not actually in love with Cuddy.

3) Cuddy has said a number of times that people who get involved with House get hurt. She probably would prefer not to get hurt by him, especially since she has a baby that she look after. She probably doesn't have the emotional resources to cope with looking after a child, being a Dean Of Medicine AND getting romantically involved with House.

My personal thought here, Cuddy did help Greg, and they did sleep together. I just think Cuddy can see that he is still seeing shit. They did sleep together...after watching it a few times. I'm still convinced...it happened. House has an illness that is true, but he knew they slept together.