What does it mean if my boyfriend hypothetically talks about "taking a break"?

We always have hypothetically talk about the future together etc but he recently brought up hypothetically taking a break.. in the past he would say if we were to break up we'd be great friends. I asked if he's trying to tell me something but he says he not and just hypothetically speaking
What does it mean if my boyfriend hypothetically talks about "taking a break"?
Post Opinion