I dont want his mom to hate me?

The other day i hung out with my boyfriend we are 14, he took my phone and i bit his neck so he would give it back, when he was leaving a noticed a bruise and it looked like a hickey forreal, i was really scared and his sister started trying to help him get it off with frozen spoons and his mom saw it & now im not sure if she likes me, he was supposed to come over yesterday and she didnt let him and his sister told me his mom isnt mad at me, but im still scared, so i messaged his mom on facebook and basically explained things, and said sorry. She has not replied yet its only been like 12 hours though.. Last night i threw up, im just rreally stressed, does anyone know any way to get rid of stress?