I'm confused, should I stay with him? (PLEASE READ)?

of course this is confusing for you, i used to be in that situation. first off, if your first boyfriend loves you, he should respect you without cursing and realize you've been with him regardless of his immature actions. Even though hes going through a challenging stage, i think its time for you to be with someone healthier, someone who fills in those holes that your boyfriend currently hasn't. If you love your best friend, and you believe he is your soul mate, then go with it, you cant be with someone because you feel bad for him and he is sucking the energy out of you. follow your heart even if it would hurt a lot. Good will come out of the right choices you make. :) so basically go with your best friend because he makes you happy and loved. :) wish you luck