That's an issue many of us have mentioned before. Their constant lack of D tends to sap your own D. Sometimes it's very had to feel D for someone you know doesn't D you. I've mentioned that very thing about LM with my W. When she does ML, it's so obvious that she doesn't really want to be doing it that I find myself wondering why I'm bothering. In other words, I lose my D as well.
Regardless of what you might think, the loss of your father may well be playing a big part in your saying that you don't fancy your H any more. I have heard that grief doesn't really peak until two full years after the death of a loved one. I know that was true when my father died, so there's at least one bit of anecdotal to support that statement. Like you, I also felt a need for additional closeness from my W at that time. She didn’t provide it, and like you, I began to feel that I didn’t fancy her anymore either. In fact, that’s when we split – almost two years to the day after my father died. Just something to consider.
Also, it’s a bit unfair of him to complain about not ML when you’ve only done it three times all year. I’m assuming that you wanted to more frequently?