About 3.5 years. But we dated a decade ago (broke up) and reconnected in 2012. And FH pretty much spent those 3.5 years proposing to me on a regular basis lol.
ETA: We'll have been together 5 years when we say i do.
(ETA ver. 2.0 - Because I am bad at counting years)
Moved in after 4 months, engaged at 9ish months and will be together 3 years at time of our wedding. We wanted a longer engagement because everything happened so quickly!