This is a very realistic dynamic, M&W. My wife and I had a situation where we were swingers/stag & vixen.
We quite often met a couple for group fun. But, the supply of willing and attractive couples is limited. Single guys can be found at the drop of a hat. And since I found that I enjoyed watching my wife in the throes and being part of an MFM threesome, we often looked for singe men.
My wife never humiliated me, never thought I was less of a man because I was wiling to share her with others. That, to me, is the definition of 'cuckold' in today's world.
And the dynamic we had often led to great evenings. Many times we'd go to our swing club and get together with a couple (or even a small orgy.) When that was over, at my age I was pretty done for the night. But Mary was still in the zone, so she'd sometimes pick up a single guy for more fun.
Through enough experimentation, M&W, you'll find what you both enjoy. And that will lead you to a dynamic where you'll both have a lot of fun and be happy in the LifeStyle.