When is an appropriate time to ask a guy you’ve been seeing about a relationship?

I don’t want to be stuck in a long term “situationship” or casual thing. So I want to ask him what his intentions are, so I know whether I should end things or not.
*it’s only been almost 2 months since we first went on a date.
When is an appropriate time to ask a guy you’ve been seeing about a relationship?
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