relationship

I’m very lost, but what does it mean when ur man tells you he’s not “ready for this” as in a relationship.? after being together for 5 years.. I know it can maybe depend on the situation. but him having a lot going on at the moment should be more of a reason for him to open up and talk about it right? Not treat me differently & say he’s not ready. so I don’t really know what it means... or what I should do in this situation. Yes I’ve tried talking to him about it. I’ve tried being there for him too. he says he wants to be with me. but his actions have shown otherwise .. advice ?):