We're friends.....right?

I've had a ridiculous amount of male friends in my lifetime. The reason for this: I don't know. Usually, it starts out with an attraction, but when it doesn't evolve into a physical tryst, then somehow it becomes this comfortable friendship with a ridiculous amount of openness that has exposed me to the male psyche in so many ways. Sometimes, I think I know too much about what makes a man tick.

Thinking about all these male interactions that I have made me wonder... when do you stop considering a friendship platonic? Is it at the level of attraction? Because, honestly, I don't have any male friends that I don't find attractive. That doesn't entirely coincide with my being attracted to them, but I definately understand why a woman would be. Does it stop when the other person in the relationship develops feelings? What if those feelings aren't mutual? Can you still label it a platonic interaction? I've kissed guys (not on a regular basis- just at some point during the friendship) and still been good friends with them without batting an eyelash when they introduce me to their girlfriends. I'm usually happy for them and wish good things. I sometimes recommend distance so as to limit their appreciation of me so that they focus on their girlfriends and not me; but usually I'm met with laughter and a shrug. But are we platonic? I wonder about who I would keep around if I were in a relationship... but one of those friendships in particular leaves me a little perplexed. He's been one of my closest friends for four years and has had feelings for me for most of that time (although he has never made a move). Would it be wrong of me to continue that friendship even though I've made it perfectly clear that he and I would not work (due to his inability to ask me out... I need a guy who goes after what he wants... in all facets and is comfortable with himself enough to do so) if I were to get involved with someone? Could I still call him friend even though his feelings for me are more? I know that most guys don't think anything of a kiss (and some dont consider that cheating)... so me being a virgin makes life easy for them in their mental and I'm comfortably labeled 'friend'. But am I really? Regular texts/calls...going out on 'dates', eating dinner and cuddling on the couch are all things that I've done with friends at one point or another. I really don't know.... Yet another thing I'm confused on.

Update (thanks to Jasmin and Jameil's commentary): I need to clarify before people start lookin at me wrong...lol. I am not regularly kissing or cuddling with any of my friends. Those are just boundaries that have been crossed at some point or another within those friendships, but does not occur repeatedly or throughout the friendship. The friend that I've had for the last four years... I've done nothing with. Not a kiss, not holding hands- nothing. No mixed messages. I could not fathom regularly engaging in kisses and touches and not catch feelings... I'm not that talented. What I'm wondering is if that line has been crossed at some point in the friendship, does it change the dementions and turn it into something that can no longer be labeled platonic? Or if one of the people in the friendship catches feelings, does it mean that a platonic situation is no longer feasible?

Digression: gotta duet with Sojourner on his poetry site. If you're interested- check it out: The Virgin Temptation