In my first relationship I also found myself in this situation with a bdsm interest and more interst in sex than my partner had. Though I came to it from a slightly different direction in that I only found out about my bdsm interest during the relationship.

I broached the topic, and he also laughed at me at first which hurt, not a very loving reaction, is it? But I put it down to embaressment on his part, which it turned out to be. After a bit we could talk about it though, and we tried it some, but he found it did not do anything for him. After a while with much thinking on my part, we agreed that I could look elsewhere, and I found a Master. He and my husband met after a while, and they agreed to both have me.

This relationship lasted 10 years, after which I and my husband parted ways, but I kept my bdsm partner till he died of a sickness.

My own conclusions were 2: 1) you have to have respect and love in a relationship, meaning you respect it when people try to tell you they have a need, and you may not agree, but you listen. 2) An inbalance in sex need can get to be a big problem if it is not respected from both sides.