That depends on you and your guy. Every situation is different. There are no hard and fast rules. Each couple has to set their own guidelines and expectations when they agree to take a break. It doesn't sound like you two did that, so you should be asking your guy this question instead of me.
If I made the rules, anyone whose partner requested a break would have the right to date around until the break is over. It's bad enough that you have to wait around for someone to make up his mind about you, but you're supposed to do it alone, too? That's ludicrous. But then, I think breaks are ludicrous already. How does spending time apart help you make up your mind about someone? Shouldn't you be spending more time together?
I equate dating breaks with marital separations; both are typically just a postponement of the inevitable split. Breaking up is hard, messy, awkward work that few rush into. Instead, they suggest taking time off from the relationship, then spend it looking for someone new to date (hedging your bets) and working up the gumption to pull the plug on you. That's why it's ridiculous for you to sit at home alone and dateless until your guy convinces himself to dump you.
That's me, though. Do what you have to do. I suggest you talk to your guy and make some guidelines. But if he asks you not to date around while on this break, you don't have to agree. If he asked for this time apart, you have every right to say, "Do what you have to do, but while you're doing it, I'll be seeing other people."
Thanks for the question.
You definitely need to make sure both of you are on the same page about what these means, because I've seen the tears that are shed when there isn't clear communication in this sort of situation. "I thought we were just taking a break for the summer while I sorted through some emotional baggage, and then in the fall we were going to talk. Instead, he went out and got another girlfriend and didn't tell me," etc.
Never consider someone a priority that only considers you an option.
anybody else hearing Ross (to Rachel)? "We were on a break!" lol
OMF (oh my Friends!), i thought of Ross and Rachel also ..."OK, right, we need a break, lets go get some frozen yogurt or something..." No, Ross, I mean a break from eachother.."
Anyhow
Yes,a break means you can see other people
Make sure you're on the same page... and I don't know anyone who went on a break and got back together. The break I had with my ex allowed me to finally see that we were indeed better off as exes.