The problem with the two of you was that you were both so busy papering over your problems with sweetness and light that you couldn't see the great big chasms between you. Chances were that you held widely varying opinions of some kind -- they could have been connected with your careers, or moral philosophies. Whatever the great divide was, it was something you refused to face.
You kept your eyes closed, preferring to focus on the warmth between you and your lover. Day-to-day life was uncomplicated and easy, since the two of you got along so well. So that's where you lived, in the day-to-day, letting things drift along pleasantly without knowing exactly where you were going.That was all fine and well, until you had your a wake-up call. You needed to talk about the differing issues between you. It may well be that you could have found a compromise, but you couldn't get there without some hard work. You were going to have to bend, a little or a lot, and accept something you never thought you could. You needed to find a middle ground. Instead, you found a bittersweet ending. solution that left you and your partner both feeling bittersweet, you could probably have found it.