She has been texting all day and night. She keeps her phone with her at all times. She even takes it to the bathroom! I am worried! The person also calls her every 9 in the evening! That's horrible for a married woman with 3 kids!

STOP!
You don't even know who she is talking with. It could be a woman friend who is having some huge problems. It could be over something you know nothing about. For all you know, your father is having an affair, or has told her he wants a divorce, or that he can't stand her, or that he is about to lose his job, or he lost all their savings in a bad investment. YOU DON'T KNOW, so stay out of unless she tells you.

She could be planning a surprise for your father for Valentines Day. She could be planning vacation.

Don't jump to conclusions.

Don't get so stressed. You don't know whether she is planning something or always has to talk to someone very important like a family member or her boss who knows. But you shouldn't jump to conclusions. With valentines day just around the corner she is probably oing something special!! :)