The "sexual issues" in my relationship with W were not "traumatic" in any sense - it was a gradual decline in frequency that began very early on - after the first six months, I'd say. But it was a "significant issue", that was (and still is), raised many times as a topic for discussion. It was a "divisive" issue. It was significant (to me, at least). And it presented me with, what I thought (and still think) are "out-of-the-norm" behaviors by my W.
My ex's father died shortly after the 2nd year of our "dating" relationship. It was traumatic, to her. Although it initially brought us closer together, its "uniting" effect tapered off over the years. Separate from that issue, she exhibited a lot of behaviors that one could easily consider "out-of-the-norm". It would take a long time to relate these, and, hey, the NCAA Tournament has begun, so I may be scarce for awhile.
