First of all, as a husband, it must be very sad to hear his wife say this. However, before answering this question, we need to think about our behavior and attitude.

If your wife thinks you are weak, it may be because you have not shown the courage and desire for protection she expected in some ways. This may include a lack of determination when encountering difficulties in family life, or a lack of resistance to some unfair or bad behavior from the outside world.

When answering your wife's question, you can try the following methods:

1. Listen to her first. Ask her what makes her think you are weak, so that you can better understand her thoughts and expectations.

2. Express your feelings. Tell her you feel sad and disappointed, too, because you also want to protect her and your family.

3. Commitment will change. Promise her that you will try to change your behavior and attitude, make yourself braver, firmer and better protect your family.

4. Ask her for advice. Ask her what advice can help you change your behavior and attitude and make you progress faster.

Finally, don't forget to prove your determination and change with practical actions. If you really want to change yourself, then you need to show new attitudes and behaviors in appearance and heart.