I met a girl a few months ago at my sisters birthday party. We became best friends and we have feelings for each other. But her ex is still in the picture. She says she wants to move on and be with someone new but her and her ex just got an apartment together but they aren't in a relationship. She knows I still have feelings for her and she still has some feelings for me but I'm afraid that by them moving in together those feelings will disappear and she'll get back with her ex. Should I just let go of my feelings for her and keep our relationship at a friendship level or should I keep trying?