or:My mother recently died Im 15 years old why am I being clingy to my friend Moms?
or:cause YoU MeSt Up. YOu a MeAn p/e/p.
or:Because you're still grieving inside and you need motherly affection especially at that age. You will be like that for some time until you finally become independent. Perhaps speak to your father about this? Because he's probably missing her too