The Most Awkward Conversation
Defining the relationship. DTR. Whatever you want to call it, it's terrifying. Will they laugh? Will they run? Will they say they need "more time" which really means they're not that into you?
Here's my approach: pick a calm moment, not after a fight or during stress. Be direct but kind. Say something like "I really enjoy spending time with you and I'd like to know where you see this going."
Whatever Happens
If they can't give you a clear answer, that's your answer. Someone who truly wants to be with you won't leave you hanging. Don't settle for ambiguity when you want clarity.