The answer is yes, of course.

My wife and I are both 54. She is still waiting for menopause (and would consider you quite lucky to have got it over with so early). Even so, things are changing. Most noticeable (in both of us) is a drop in libido, i.e. sexual desire, and therefore frequency. Vaginal dryness is a fact of life in middle age, but is easily dealt with. We use a lubricant called Add Magic from this company. Plain old saliva works, too.

I suspect that much of what is problematic about sex in middle age is psychological - body image, self-confidence etc. The fact that you were friends before you became lovers should ease some of that.

That's really what intimacy is about after a certain age: the friendship is paramount to the sex. You can still make it work. And it's worth it.

Best of luck!