Some strange views here.
People who think sex stops at retirement (I know people in their late 80s who still enjoy it, male and female).
People who think it is automatically the OP who is “to blame”
There’s a sort of checklist
1) Is this about your relationship as a whole? Does that need fixing first?
2) Is she depressed or does she have another medical issue which could cause this?
3) Do the two of you have enough time with each other alone, and when neither of you are tired/stressed/drunk?
etc etc.
But some couples do have a big mismatch in sex drive, and that may not necessarily be fixable, if the partner with the lower drive (not always the woman) doesn’t see the mismatch as a problem or something they are willing to talk about or work on. And ultimately it may break the relationship. Been there.
I think Ton was close to it. For a complete and happy marriage relationship you do need love, respect, friendship and sex – of a frequency and type you can both agree on.
Dr J this is a real issue – you do need to think about if you can really be happy if the situation never changes. For some of us blokes, sex isn’t just about getting our end away. It is about closeness and intimacy and communication. Are you going to be able to be happy if things don’t change? If not, you need to let her know.