Wife does not want sex.

I am 76, my wife 73.

There has been no ''couple'' sex now for over 5 years
There has been times when she has wanted an orgasm which I have helped with. When it's over she just goes away, no consideration to me

If I try and discuss it, I get short shrift.

I appreciate there have been heavyweight problems in our lives; wife's daughter and only child died suddenly 3 years ago, withing 3 months my wife was diagnosed with breast cancer, which was, thankfully, caught and treated early with success.

She tells people she loves me.
I am getting to the point where I, at times, weep with frustration.

We are relatively new to our new home (four years) and new friends are not to the stage of riniging up and going for a coffee.
I may be 76 but everything works.

I realised some days ago that lovewithin me for her is dying....being turned away and ignored so may times is taking it's toll.

I am struggling to see a way forward.