i stole my girlfriends underwear and sold it online

I wont state exactly how i got them but i got my girlfriends underwear and sold them on a certain online market for school needs and cause im broke, id lie to her or my friends if asked about the underwear but they caught me, i dont know if she told her friends too but she and my friends found out cause they were following my page too and they confronted me and i said oh alright it was just for fun and told them that i had no idea they followed me and i would have deleted the post if i knew they were following, idk if they believed me or not but now they dont trust me as much