It is a total downward spiral!

My boyfriend and I have known eachother a little over 15 years.. in a relationship for almost 2 years and currently living together....but i cant do it anymore! We argue over the STUPIDEST and SMALLEST things and every month he says hes moving out. And i cant keep stressing about my livng situation when he can move home and i dont have that option.. i love him to death, we work well together get along... when its going good its fairy tale perfect and when its not good its horrible hes a scorpio and im a gemini... not that all matters but i never loved like i have for him before. But the last month i am to mentally and emotionaly drained i am kind of giving up. He said hes moving out at the end of the month and half of me is upset. And half is relieved! And i have no idea if he does move out if we are still together since his reasonings are always financial and now its along with our arguments.

I dont know what to do...give up or go with my gut and try to have him stay