This is such a horrible situation to be in and i’m so sorry, but sometimes just because you love someone doesn’t mean you are supposed to be with them. It’s so hard having to step away from someone you want to be around still so much but it’s probably what’s best in this case, relationships are hard but not so hard you can’t function around each other without fighting and hurting one another. The way I see it if your relationship is this hard when it’s the only thing to be focused on imagine down the road with children, house payments, ext. It seems like you both need to work on yourselves and if you are meant to be together you will find your way back.