I had a couple dreams throughout the night... one was me and my boyfriend at school, he seen his ex and was staring at her when I caught him I said do you like her or what? and he paused and was like uh no. Then we were walking to his car because he was gonna give me a ride and he completely left me?! and this ex was watching and laughing! I immediately hopped on my street motorcycle, and went fast to his house , I seen his mom only so I told her me and her son are breaking up and I love her and her husband so much thanks for being the best and I gave her a hug and right when I was about to leave my boyfriend and his ex pulled up! can anyone tell me what this means? my second dream was I was taking and my two k9 teeth were loose then I was like what the heck these are adult teeth they aren’t supposed to be loose like that  then I woke up??

*Bite with Might*
I would be cautious with that boyfriend, if you are still dating.  He may not be displaying his feelings for his ex to you very explicitly.  You may not be his first priority.
Make sure you stand up for yourself, you deserve to be treated well. 
A quick google search on losing teeth: "Meaning: Dream Moods notes that dreams where you lose teeth are typically associated with feelings of powerlessness and loss of control (on a personal note, I can recall a friend going through a very drawn-out divorce having these lost tooth dreams on the regular)."
It's great to be nice to others, but not at your own expense.  I would focus my attention on being really good to myself, and reaffirming how you do feel powerful.  Plant the seeds and those teeth will grow back in no time.