<human>: So to begin, I will warn you this is a fucked up situation and I realize that.

Back story: He and I had been together 3 years since high school, and moved in together July 2013 when in May he said he thinks we should break up because I had been his only girlfriend and he thinks he should experience other things before settling down. 
Our lease was up in July but we signed another 6 month lease because neither of us was ready to move.
 
Our lease is up the 31st, and I was planning to find a roommate and live somewhere else, when we decided to just move into another place together because we are best friends and we don't want to live with strangers. 

Today we were supposed to go sign the lease, when he tells me he wants to sleep in separate rooms at the new place (until this point we have been sleeping together and still have sex occasionally). He reiterates he wants to experience other things.

Now, I have no idea what to do because I do not have another place to live (or time to find one in 3 days).
It's killing me because I know if he brings another girl home he is interested in, it will break my heart.. but I don't have another place to live so it's not like I have a choice that we sleep apart.
Now I know the obvious answer to live elsewhere but that is not an option with my finances and time constraints, so how can we possibly still live together without me getting hurt?

Provide a brief overview of the text.
<bot>: Ex wants to sleep apart in new place, as a step to distance ourselves, because he wants to experience other things before settling down. How can we live together without me getting hurt?