What are we...?

Nature

So me and my boyfriend broke up 2 months ago. A month later we’re pretty much back to doing what we were doing when we were together. He spends the night with me nearly every night. We just haven’t communicated what’s going on between us. It’s eating me up inside so i finally want to ask him.

I was to say something like “what are we?” but not those words. I want to know that i have his loyalty and that we’re both on the same page.

Any suggestions?