Hi again, still hopelessly in love with the wrong person, I need help?

Okay so I am still having problem with my love life, so my last question was a desperation move, but this one really needs answered, you see the straight guy i like has a girlfriend who wants me to be quiet about all of her wanting to break it with him, but I can't lie to him so when he asked me if she wanted to break up, I of course had to say yes... She wants to kill me now, what do I do...