Not unusual, but talking it through will help.
Both need to be tolerant, and accept compromises,
Try to find books, magazines, sites that you both find arousing, even if mildly so. You both need to take time to make overtures to the other.
There are lots of books available to learn what to do, what buttons to press and where they are.
A dear lady, in her 80s, sadly, no longer with us said "Sex is important in a marriage. If the sex is good, the marriage is good" And she was right.
Good sex is a splendid bonding agent, in addition to being mentally and physically good for you.
You both need to exercise care, patience and plenty of lubrication, via a glass and elsewhere, are needed.
Things won't click to begin with, but should gradually improve .
Start by varying times, places. Tell each other your fantasies, let your imaginations run riot. Remember, you were keen, and you are still desirable, so adapt to the change and continue to believe that you are attractive.
Accept the compliments.
You both love each other, so make the effort. Ultimately, it will, be worthwhile.
If he wants to buy or do things that make you attractive, accept gracefully and relish the thought.
Nothing succeeds like success