Anybody who would tell me that they don't know if they love me--I'd look them in the eye and ask when he mentions furniture--do you love me?
If he's unsure, then simply respond: and I'm unsure about buying furniture!!!
I don't care if they're sober or drunk--a non-committed spouse is just that--and certainly isn't ready to be considering buying furniture--unless his plan is to get all that furniture to himself without splitting the income tax with you.
I'd laugh if a non-committed partner wanted me to commit to furniture, or anything else. Non-committed is just that--and nothing else matters or is of concern until THAT ISSUE IS SETTLED!