Help!!!! pls!!!! i really need it so damn badly.... arh...?

I know Jane since i was 6th grade. I am 15 years old, and i felt in love with her dad. her dad is simply hunky and hot, and delicious. But, the problem is that, he is married and had two kids. He treats me, kinda okay. Last 5 years, his had a girlfriend outside. But later last year, he got back to his wife, as she was suffering from ovary cancer. i really love him. should i spike his drink, so that, we can sleep together? what should i do, to get him to love me. His wife is so damn ugly and fat, and her character sucks like hell. she is so damn sensitive. pls, tell me, what should i do to let him love me. pls, no stupid comments.