Wow, maybe it's just me but 6 months of dating and still not considered a bf. NO WAY! Waste of time to me. Normally 2 months for me of consistent (avg 2 dates a week) dating. By then we know if we should take it to the next step or not.
About a month and we're now going on five and a half years, two years of dating and three+ living together. We went monogamous immediately but it was never discussed and we both knew there was something good going on in the first week that felt like more than lust and good will. In the past it has usually been longer but not this time and this time had more challenges, mainly the age thing. I'd recommend anyone interested in love, as opposed to just having a REAL GOOD time be receptive and not reluctant to think in terms of wow, I really like this guy. I think you can talk yourself out of a lot of happiness. You can't be shy in love. Nothing wrong with just having fun if you're not really done just having fun.