Pls help im dying inside

My bf broke up with me yesterday but i know he still loves me and i still love him but every time we get into a small argument and hes already stressed about something else in his life he assumes that our relationship is shit (even tho its actually really great we really love each other and genuinely make life great for each other) and then he breaks up with me. This time it feels really serious though but i dont feel in my heart that we are really over. i love him so much and i miss him so much. should i text him??? what should i say?? I just want him back but i have no idea what to do. We have so many plans for the future and i know hes not acting right.