How long were house and stacey togethor?

They were together for 5 years. She left him because he became an asshole to her after this whole leg thing.

Well....They were together for 5 years then the whole thing with his leg happened and he could never forgiver her so she left him. Then about 5 years later she came back and asked him to help cure her husband. House did that and she told him that "He was the one he always will be". During the course of the next few episodes House "woed" Stacy and they slept together. She wanted to leave Matk for him and House said no that she wouldn't be happy! And thats about it.... :)