Hi there! I'm a very similar situation. I'm a bisexual married female and we're in a quad with a married couple who live ridiculously close to us (like a 5 minute drive). Us girls are involved together, but the boys are just friends with each other. We make sure primary couples have alone time, the secondary couples (her and I, her and my husband, me and her husband) have alone time a couple times a week, and the boys hang out together and play video games on Sundays. I'm glad to hear things are going well for your quad. They're going really well for mine too.