Well done to Flipflop for taking on what could have been a hand grenade of a subject.
I'm even older than Aliprovidor (late 60's) and tbh, I think the chances of you finding anyone - male or female - who would want to share the kind of lifestyle you're 'offering' is pretty remote. That's because by this point in most people's lives they've either found what they want out of life or they've settled in with what they've got. Add in some of the concerns of late middle age - family, finances, health etc, plus the life experience 'baggage' that's accumulated and left its mark (divorce for example) and it becomes a huge upheaval to just up and go. Most people, by this stage, are not looking for more difficulties, they've had a lifetime of them with many more lurking just over the horizon. Of course there's always the exception - people who are restless enough to want to keep pushing, but if you're that sort of personality it's unlikely that you'll be interested in meekly tagging along on someone else's vision. They'll be the one's trying to follow their own vision.
Most of that is pretty unisex but there's an added factor with women (speaking as a male). Remember the film 'When Harry met Sally' - "men and women can't be friends because the sex thing always gets in the way." By the time you're in your 60's that 'sex thing' is more likely to be a 'gender thing' but in my experience to do 'his n hers' travel succesfully you have to get on. That means friendship first, travel second - in all senses. That also means a meeting of equals and the compromises that entails. That may mean a cruise this year and overland to Mongolia next.
I've been lucky, with my wife happy to come along on some of my milder travel fantasies. We should, for example, be on a bike trip around the southern states of the US at the moment but the virus killed it off. She was happy to do that, but my attempt to get to West Africa a couple of years ago was going to be strictly a solo affair. She just wasn't as interested in doing that as I was.
There's a lot more that could be said on the subject but my advice would be to stop looking for a travel companion and, if that's what's important in your life, to look for a companion - somone you like for themselves, not for what they can do to enhance your existing life. It gets harder as you get older though as people on both sides of the divide have more to lose and there are plenty of men and women in their 60's etc chosing to live alone. Personally, if I split up with my wife now for whatever reason (unlikely but there's many reasons other than divorce) I'm not sure I'd bother actively looking for anyone else, but that's me. But you can never tell - for good and for bad, what's round the corner. I have a friend in his early 60's who's never married; and no, he's not gay, (or fussy come to that), he's just never met the right person. And it's a great sadness in his life. Whereas I know someone else whose wife died when he was in his mid 80's and he met someone on a cruise the following year. Just the luck of the draw.
Take a step back from it all and work out your priorities. Compromise has always been the name of the game. And yes, I'm aware of George Bernard Shaw's take on it - “The reasonable man adapts himself to the world: the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.” I just don't think it applies in this case.