Help! ):

Ohkay so this all started wehn we were at my friends' house (friend 1) and we were at the park. i was SUPER bored so we both go back to her house, but my brother thought that my mom said we have to stay at the park the whole time we were at my friend's house. so we went and my brother went back to his (our) house. like 10 minutes later i was texting my other friend (friend 2) and she was like "WHY does Vanesa keep on harrasing me?" and i was like WTF?!. but then i tried to tell her it was my brother (cause he said he was gonna prank call her). BUT she still didnt believe me! and i was like "but it was my brother!" no use. i had my friend (1) text her saying "hey it wasnt me that prak called u". but friend 2 didnt reply back. plus she deactivated her FB for NO reason, cause she thinks friend 1 called her but it WASNT! anyways... what should i do?