I can understand how being 7 hours away from a couple that lives together would push you into a secondary position. As a matter of day-to-day business, they simply HAVE to make decisions and may not always have the time to contact you about them.
This is certainly true, but even when we went to an event in early June and were together for 5 days, they'd make a decision, e.g. who would sleep with whom when, and then tell me what it was and then ask if it was ok with me. In that situation I felt I could have/should have been part of the discussion. Also, in June they had already planned out many of their weekends for themselves for the Summer months and never even talked with me about if or when I might want to get together with them, or do things with them, etc.