My mom is having affair,what should I do ?

[Bigbang]

(my english is not so good so pleas dont judg my grammer and pleas help me )
my mom is having affair with a person (my father dont know that.)
once I checked my mom's cell phone and I found many romantic sms from this person he is my sister's school bus driver.
one day when I returned home from my college before my normal time he was there at my home.many times I saw my mom seeing him from window when he comes to drop students.my mother everyday calls him.How can I spy on my mom's call when she call the man? what should I do.?
my dad really love my mom very much.

[BlackCherry]

If you are sure you mom is cheating, tell you dad about this.

[nancy]

tell you dad

[Berry lee]

Tell u dad secretly. it is fair to him.

[Cobe]

Telling your dad about your mom's affair is a little bit embarrassed, isn't it? You'd better have a secret plan about that. SPY! lol!

[Meiro]

You can talk with your mom to find out what's going on with her first...

[Coco]

You can talk with your mom to find out what's going on with her first...

I think this suggestion is available. Talk to your mom first.

[sophie hello]

You can talk with your mom to find out what's going on with her first...

Its a good suggestion, find out the truth first.

[Bigbang]

Thanks. guys, I will try and do for my best!

[nancy]

talk to your Mom

[Luanamy]

Terrible.....tell your daddy......

[Coco]

Hope everything is fine now.