Sounds like theres a bit of flirting going on, or I hate to say, an affair. This woman seems to be out to get you in some way and is revelling in your misery/anxiety, im sorry but I would have slapped her by now! but you have enough on your plate what with your father, and im sorry if im to the point but I have to say what I think. Your father is very ill, yet your partner is more concerned about having a little game with this woman...where are his concerns for how you may be feeling??? Im sorry but if someone were doing that to me despite the fact of what was happening in mine and my fathers life, I would get shot of them, cos they are inconsiderate and heartless...you dont need the added concern of what he is up to, you have enough on your plate, so I would just concentrate on the people who care for you, namely your father and get rid of this selfish little a r s e!!!!!