I'm a little bit confused on what you meant by "to assume" in this, your case. (Is it always better to what?) But anyway, I totally get how it's not that easy or simple to just come out – esp. when we don't totally understand ourselves or how exactly to go about our lives with new goals that some of our loved ones won't understand.
We all have our preferences and different time tables with regards to these events (i.e. coming out, etc.), and I would suggest to just take it easy and take your time. Also, try not complicating things too much. You like guys; you already know that. Try sharing this special part of you -- even if you don't have to totally explain everything -- to someone you trust (e.g. even new gay friends that you make and can talk to about these things), and you'll find that it becomes more and more easy to talk about.
It took me some time to come out myself, and I was surprised with the support I got from friends and family when I did.
I'm sorry in how I tried to express myself. I meant exactly coming out. It's just "to assume" has a different meaning around here at Brazil and I just typed by mistake. But anyway, tks for the advice, it was of great help.