There is something wrong with your relationship, and you do not know why it suddenly began to deteriorate. Seemingly insignificant details that disturb your relationship from the inside can be at fault. If you find them in time, you have hope to remedy the situation.
Your family
It's good that you have a close relationship with your family. But, if at the age of 30 your mother bakes you buns for breakfast and advises you which shirt to wear, then it is very likely that your partner will sooner or later stop liking it. "Mom's little sons" who are unable to define clear boundaries and allow the family to interfere in life will never be sexual.
Constant criticism
Do you "spoil" your soul mate with constant criticism? Or, conversely, does she not like the way you breathe? Then it is clear that the prospects for your relationship are not entirely bright. No one will voluntarily allow themselves to be insulted. The worst thing you can do is criticize your partner in front of other people. Do this several times and, in doing so, inflict a mortal wound on the relationship.
Unbalanced finances
Whether you are on the side of a sponsor or sponsored person, financial imbalances never do any good in a relationship. Naturally, there is no problem if your partner wants to be a kept woman, and you agreed to these rules. But if you expect a fulfilling relationship in which both roles are balanced, you probably won't be happy with long-term funding for all of her expenses and activities. Likewise, she would soon tire of paying for everything from rent to movie tickets.