Baruch Hashem you have found someone. Here are some things that couples in general should know in order to keep the relationship strong.
1. Communicate what you need and want, listen to each other and be open to working things out.
2. Appreciate each other and show it or say it.
3. Find a little time to spend together, this is especially hard when you have kids, but neccessary
hatzlacha 
and mazel tov
