well, as i said in my original post, it seems to me that most of us are quite happy being single, so i would not use the word "resigned". that does not mean that most of us would not be delightfully surprised to fall in love again, just not holding our breath
as for having the same energy for anything that we had in our 20's, well that is another subject
look forward to welcoming you when you do your visit! let us know.