Consider this a good time to show love, and respect, and find better ways to express them, besides in selfish gratification with an unwilling partner. You can enjoy the experience, as it sounds like a healthy one. All of us have to learn to control our lust, especially since we humans have so much of it. But it fades in time and love grows.

Just remember that love is about actions, not just words. A show of love is not pressuring her at all about sex, and handle your lust privately.

Sex is not just about you and what you feel or want or think it's time for. At seventeen or any age, if you are not prepared to deal with any of the consequences of sex, you are not ready for it.
You only lose your virginity once, so you really need to be selective about when and to whom you lose it.

This young lady is not ready for sex, she is too young anyway. She may think she loves you, but maybe you just don't turn her on. If that is the case, giving you a blow job is certainly not going to be something she wants to do.
You may want to have sex, but it is not going to kill you if you don't have it. There are going to be many times in your life when the urge will be there but the timing is wrong. You are not always going to be able to do what you want when you want or have what you want when you want. That is life. Sometimes you have to practice a little discipline and work with what you have.
Stop putting yourself in positions where you would be petting. Group date, do things where alone time is not an option.
You can do and survive this. Continue your conversations with Miss Palmer and stop pressuring your girl friend.

I agree with the others. Also, even if she was to have sex with you because you wanted her to if she isn't happy with the choice she made she has to live with that. For girls, losing their virginity is something special and after 7 months if she isn't ready then just let it go. The time will come and it will be very special to you both, just don't go find another girl to fill her place to satisfy your "need".