why tigress take care about po?i mean u know in KFP 2 she huged him but they r not in love!!!

Hugging doesn't always mean romance. Hugging can be a sign of friendship. Tigress multiply in the second movie, which takes place three years, (As the second movie was three years after the first.) she might've gone much closer to Po.

But as Tigress has never experiences true love, even though loving her foster father Shifu and and caring deeply of the villagers, she has never experienced a true romance at all, so she wouldn't exactly know the feeling of love, even though she might love and respect Po.

She did that to show she cared and to show that she understand what he is going through at that time that why she hugged him in Kung Fu panda 2

The answer is simple: she don't know anything about love :-)

I think Tigress is in Love with him but she don't know it cause she don't know how love feels like :-)

they will end up in love, every good jack black story needs a love interest