In desperate need of relationship advice

I really want to be with my boyfriend but its seems like he only cares about me when he wants to. He’s been ignoring me since yesterday and i didnt do anything. Im crazy btw so blew his phone up a billion times and he didn’t respond. I changed his Facebook password and thats when he finally texted me only to get it back. He wouldn’t tell me why he was ignoring me and i said a lot of bad stuff that i didnt mean but we do that all the time. I really love him and I’ve we’ve been on and off for 2 years. I feel like he treats me like nothing. We were supposed to hang out today and it seems like every time we’re supposed to hang out we get in a argument. I feel like he doesn’t even love me. Does anyone have some advice for me?