How do you know when you’re in a committed romantic relationship?

There’s a man I talk to and see once a month and we’ve agreed to exclusivity but we haven’t labelled what we are to each other. We also haven’t kissed or been intimate sexually.

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4 mo
What should I regard that as, having a boyfriend, or having a friend who’ll become a boyfriend when we’ve finished our studies, in a year?
How do you know when you’re in a committed romantic relationship?
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