honey no one can ever replace your mom.. Trust me.. i have had mother-n-law and they will never come close to replacing my mom..

now being there when your mom cant is one thing being freinds with them is something totally differnt, and being close to them is something up to you....

I love you and care for you a great deal..
Do not ever think someone can replace anyone in your life..
Moms are the harderst to ever replace and if they are not dead, then no way can you do that.. and even if they were, then no one would want you to.. and if someone says you will have a new mom, yes you will have a new one when you get married a New Mother-in-law..