Try this approach: “I really like you, and I think I’m ready to be exclusive with you.
There’s no reason to lock it down until you know your date better and feel more confident that this one is a good fit for you.
Once you’ve been dating for a while and you’re sure you want to make it exclusive, be honest and direct about what you want.
Often on a date, one person asks the other a line of desperately strategic questions to try to figure out what she was doing the weekend before – or most importantly, who she was hanging out with!
What to do instead: First, it shouldn’t matter whether your date is seeing someone else (at least) for the first couple of months.
Will you hang out a few more times until one of you cools off and ends it?