If you have extra cash, invest in therapy or a mutual fund. If you're afraid of losing someone because you've closed your wallet, you're paying that person to remain a friend. Sex belongs in intimate, committed relationships. Don't root yourself in a sexless relationship because you're hungry for emotional and mental intimacy. Enjoy the friendship and keep looking for a full partner.
Tension is released through arguing.
Don't imagine that through your steadfastness she will change her sexual orientation. That's not sane. My world is crumbling. Specifics are a bore, but basically finances are a burden. My mother has helped me every month for the past year.