I think if two people honestly connect (keyword: honestly), age really doesn't matter. OW in my case is a little older (not by a huge amount, but it fits with most of Hoss' MLC friends who are a good 10-30+ years older than him, especially since she has grown children still at home and we had none. He wants a mother figure).
I am open to what the future holds, but I do remember asking a friend a few years ago (female MLCer who was married, but living an "open" relationship after his MLC affair) what she saw in the younger men she was hooking up with. She said it was great for what they had in common, like current music, energy to party, sex. But her interest never lasted, because unlike with her H who was the same age as she was, there were none of those shared pop-culture and life stage experiences they could build on.
I remember my dad saying that too about his ex-wife, who was 13 years younger. Music was really important to him, but the music of his youth was the music of her parents' young adulthood, so he'd have to discuss it to them, not her, because it bored her! They were different races, and the cultural differences were nothing compared to the age difference. And they were both middle aged, so I don't get it!
But I keep that in mind when I see men in their early 50's. There would be a gap. But if it were Keanu Reeves or David Duchovny, I might be willing to deal with it.
All men under 35 seem like babies to me, so I don't think I'm going to have to worry about the cougar thing grabbing hold. I don't want to raise a man! In some ways, I feel like I already have!