The age difference with a lover varies according to some situations. For example, I have had lovers older than myself and younger than me. In all of them, I felt as if we were the same age. I think this is because the age difference between us is very small. The age difference with some of them was 2 years, with some the age difference was 5. The key here is harmony. It is important to have a lot in common with the beloved, to laugh at the same thing, to be sad about the same thing.