Here is my two cents.
First, I admire you and your boyfriend's desire to wait until marriage. That said, from my view, you and your boyfriend would be opening yourselves up to an easy occasion of sin, even if you were sleeping in different guest rooms.
I can't comment further because you didn't tell us how far apart you live and how long you have been dating.
If you don't really know each other, this would be a bad idea.
My colleagues may have more to add but, again, this doesn't sound like a good idea.
We have answered similar postings in the past that you may be interested in reading:
I hope this helps,