I'm always worried about getting "friendzoned". It's happened before, and I hate that feeling!
I think it all depends on the people. Almost 10 years ago I met a woman online and it started with a "date", there was immediate chemistry (she got my sense of humour, she was silly, she was Catholic, she was SMART, and cute). As I got to know her better I realized that my glasses needed cleaning on our first date because she was more then just "cute", but I digress). Anyway, we dated for 2 years, but really this was our oppertunity to develop a close friendship, and ensure that there was a chemistry / friendship that would be enough to sustain a marriage. If I would have wanted to call this a "friendship" vs dating and having some level of commitment to her she would have likely left me, or friendzoned me.
The reality is I remember being cautiously optomistic about our first date, she seemed like a nice girl I was certainly interested to see if our online conversations could translate into something in person. I had SO much fun on our first date, I remember being so nervous about our second because I kept hoping that our first date wasn't a "one hit wonder".
After 2 years of dating, I asked her to marry me. We had 5 incredibly difficult, but incredibly wonderful years together until she was called home to God.
When you find a woman you can give a pack of klenix too as a birthday gift (before you get married) with a note that says "In case you feel the urge to cry because of your old age" you know you have someone worth doing anything for!!