I'm a expert here. I been told at least by 7 happy people in the past month. Your problem is one of the most common I seen around here in off topic. I would like to say there is no such thing as the friend zone. You either ask and get together or you get denied. She allowed you to be friends because in the way you asking is like asking a friend to prom. She wasn't interested in you, but she didn't completely deny you and does not want to see you ever again. Therefore your in a steady friendship. The friend one is a imaginary zone where boys or guys go when they been rejected thinking they have another shot when they don't. You have 3 options here and I'm not going to decide for you because in life you make your decisions. You came here to take notes from people who learned more than you did in the past years. Option one is do not go on any date and just be friends with Elizabeth. Option two is go on the date. I won't advise double dating with Elizabeth unless she is comfortable and so are you. And your new relationship is keeping it steady and you have gone on several dates. Note dating and being in a relationship is completely different. I could be dating this girl but not be in a relationship or vice versus. Option 3 is ignore her which I don't recommend but it's your choice. I would choose option 2 and see where it goes and maybe Elizabeth along the road will consider you again when she is done with the other guy; if she ever does. Or you could have a happy relationship or date with the other girl which could make you more happy than Elizabeth. Love is confusing and has several paths and stages to it. It is not a simple thing most high schoolers think it is. Ie give flowers ask out girl then go to movies and have sex. Sex should be last on the list and that is if you are financially prepared for any outcome and your partner is comfortable with you. Tl:dr. There is no short path or sentence for love. You have the read the whole thing just like in life you cannot skip a stage or path. But then again love has no meaning so do what you feel is best. Note this advice is very age limited like 13-25. If your 30 years old this may not help you because women grow more complicated down the road. And if your 30 and still single there is a 50% chance of finding that one girl to marry and be with.