sinking really?
Sorry guy, I think you have ask yourself if you like to have a long term relationship with this young chic or not, If you do well I would say good luck because as you realized yourself, physically you two are not compatible. You are in declind mood with erectile dyfunctional problem and she is in her peak season of young woman. Even if you two able to get along, it won't last. However if you are looking for companionship, then you are looking at short term romance, whatever it last no one know. My suggestion is that if you don't have family of yourself and would like to be around her and fully realize it will be a short term relationship, why not enjoy the moment and be prepare to lose her eventually. You only die once, so don't regret that you didn't try. Go for it man!