安全感 is:
If you don't need to depend on your husband (you can earn $ by yourself)
If you contribute in your family (like share living expenses....)
If you get good relationship with your and his close relatives such as 62, 99, parents, brothers, sisters,......
The main point is: do you have confidence for yourself? If you can tell your husband that " It is your loss if you find some other girls outside (as you can never find the one like me)!" Then, you have 安全感.