Her mother doesn't like me being younger than her daughter and doesn't agree that we are together.

Your situation is very common. Don't worry, I'll help you analyze it.

1, half a year is not too big. Her mother is unreasonable.

2. You are with your girlfriend. If the relationship is good, fight against her mother together. Be prepared for a protracted war.

3, but the method must be strategic and cannot be confronted. I don't think it's possible to talk directly, because her mother doesn't talk at all. So, you can find a way, for example, to buy a fortune teller and calculate your life.

Besides, since your family has accepted your girlfriend, it means that your obstacle is not me, but his mother. I guess her mother has been taking care of the children alone for a long time, so it may be a bit irrational to think about the problem.

In addition, you need to find out whether there are any shortcomings that make his mother unhappy, but she doesn't say it directly, but deliberately makes excuses to say that she is too old to refuse you. You should also consider this aspect. If there is, it's better to remove it.

If you are not married, you can't be a wife. Although people in society call it that, emotional things must be serious. If you are an honest, steady and trustworthy person, I believe that one day the girl's mother will be moved to accept you.

You can find appropriate opportunities, even in the small things of life, to let her mother see your advantages, understand you, trust you and be willing to give her daughter to you.

Finally, I hope you can take the initiative to deal with this matter in an effective way. May you live happily all your lives!