If you guys do go on a break make sure you agree to the terms ahead of time. Some things to think about and discuss:
•how long will the break be?
•what is the goal of the break? To gain sexual or romantic experience outside the relationship? To work on developing healthy friendships outside of the relationship? To work on codependency issues that exist in the relationship? To work on mental health issues without needing to maintain a relationship at the same time? A trial separation?
•will you be communicating with each other during the break? If so, how and how often? FaceTime, calls, texts, etc?
•will you visit each other in person at all during this time? If so, how often?
•will both of you be seeing other people romantically and/or sexually during the break?
•if so what are the boundaries regarding that? Will you both pursue other romantic relationships, FWBs, or single time partners? Will you both use protection with other sex partners and get fully tested for STIs before being intimate again?
•What are dealbreakers for either of you during this break?
•do you both want to get back together after the break?
•when will you meet up to discuss reconciliation? Will it be in person or via FaceTime or phone call?
Also just want to add that if this break is for him to experience other people sexually, make sure it isn’t a one sided arrangement where you’re still committed to him and he’s out messing around. If he gets to see others, you should have the opportunity as well. If he’s bothered by that then it sounds like he just wants to go around having flings but know he has a secure relationship at home on the back burner. And that isn’t fair to you.