“Wants to take a break” means wants to break up, because of loss of attraction, but also wants to keep the door open in case he can’t find anyone better. Sounds like he wants to do this for a week but I wouldn’t be surprised if he’s actually thinking of making it longer.

I suggest going no contact and working on yourself physically, mentally, emotionally, spiritually, etc. You can rediscover some of the qualities that made you attractive to your partner to begin with and either get back together or find someone who’s more into the person you are now. But no contact during the break is very important, both for your own sanity, and also to give him the space to miss you if that’s what you want.