I need advice...

My boyfriend has been very busy lately and going through a rough time personally. Last night we had a conversation and he told me how he didn’t know if he should do this anymore because not being a good boyfriend stressed him out... I know he’s going through a rough time and I never said he wasn’t a good boyfriend it’s just how he feels.... he’s been distancing himself from me and it truly hurts.. I don’t know what to do I just feel that he will not choose me.. I mean no one ever has so why would he? He’s the best boyfriend I’ve ever had and I’m just in a lot of pain.. i thought we were over after our conversation last night but he still text me to let me know what he’s doing so I don’t even know what’s going on right now...