Betaship

Noun:
The term used for when you're not sure if you're ready to be in a real relationship with someone, so you date them for a little while.
(Or)
The halfway between being in a relationship and being friends with benefits.

Verb: Betadate
to be in a betaship

Called a "betaship" due to the fact that you're, in a way, Beta Testing a relationship.

Chad: "Bro I just got into a Betaship with Stacy "
Brad: "Cool beans, dude. I heard she wasn't ready for commitment yet so it makes sense that you're betadating."