How to handle and deal with such a woman in a relationship?

Whenever I approach her or try to initiate romance/ sexual activities she acts really cold and even sometimes snubs me off... doesn't respect my feelings or reciprocate

And sometimes when she has some hidden motive she approaches me , acts very sweet , tries to arouse me by being too close or touching the genitals , kissing etc... And if I act all cold she shouts at me for not reciprocating or being too selfish or that I don't care for her and her feelings.. or that I am not man enough.

How to handle and deal with such a woman in a relationship?
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