<human>: This weekend we had a Friday off of school and my boyfriends parents were going to be gone all weekend at a camping trip that we went to, but my boyfriend was too sick to stay. So this whole weekend I stayed over at his house without his parents noticing and mine not caring.

This was all great up until Saturday night when my mom called and asked when I planned on returning home. This started the debate of should I go home tonight and call it a quits or should I stay and watch my boyfriend play at his church Sunday morning with his parents getting home around the time he finishes. Both of us are selfish and kept me over one more night. This was all great nobody knew about it that shouldn't have known and then Sunday morning I wake up earlier than my SO. I decide to go on askreddit and there was a thread about what purchase under 20 $ would they recommend or something of that nature. 

I look at the post and then there was something about a tongue scraper and I kept reading and I am not the most avid teeth brusher but this thread made me feel gross. I have a toothbrush for when I do stay the night (in a guest room and his parents home) and I brushed my teeth. I put it back in the package and left it out due to some car conundrum and drama between SO and his brother. I completely forgot about my toothbrush and we then had to go for him to be on time for work.

His mom came home and saw it and knew it was mine. Asked his brother where my SO was and he said driving me home. fuck. Now we are both in a lot of trouble with his mom and are both suffering alone.

Could you distill the essence of the text into 1-3 sentences?
<bot>: left a toothbrush out that was mine after a sneaky weekend at my boyfriends house. Mom came home instantly knew.