<human>: Last night my boyfriend came over and ended up staying the night. He just turned 18, I'm 17 and we've been together over a year and a few months. This is the first time he stayed the night. It was lovely, I was so comfortable and it felt like a sleepover with a best friend. He was supposed to go to sleep in the guest room but we ended up falling asleep on my bed, with separate bed sheets. I know that was our fault. 

My mum lost it in the morning when she saw us, she said he can stay the night whenever he wants but not in my bed. I totally understand and respect her rules. He was annoyed at me; it was my idea for him to come over for a little bit after an event and it was my idea for him to stay the night rather than pay $50 for a taxi. 

When I called him he said his mum was very angry; we're not sexually active but she doesn't believe us, and doesn't want us sleeping in the same bed because she thinks we'll have sex and doesn't want us to because she thinks we're too young. Either way I don't think it's her decision? I called him before, and he hung up. 

I'm so scared she's going to make us break up or he will make that decision himself, particularly because we graduate in 2 months and just last week we almost went on a break to focus on studies and even though this had nothing to do with studying it feels like walking on thin ice.

My mum hasn't mentioned it again all day, I think she's over it or just wants to make me feel bad and guilty. Either way, I don't know what to do.

Summarize the given text in a few sentences.
<bot>: boyfriend slept over, fell asleep in my bed, parents and him are mad, don't know how to handle the situation