My boyfriend wants to 'give it a rest' temporarily?

No guy wants to give IT a rest. No guy. What he wants is to keep you on the hook while he goes playing around. Also a part of his immaturity. My advise: Just give him a legit break-up. Accepting that, he might just grow up a bit. And also accepting that, you'll know where you stand and be free to do as you please without guilt. Good Luck.