At what point is too long?

Been on a date with a girl and we spend a few days together a week just doing casual stuff like going to the shop together, going to the beach etc. We've got another date lined up and don't talk to other people atm however, despite spending the last few weeks together, to her we're still "not dating and not in a relationship". I was just curious at what point does this change/ at what point do I jump out before its a situationship? I know everybody is different but id just like some general feedback

At what point is too long?
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