I thought this was the case for most people and it took me the longest time to realize not everyone is like that, but yes, I can definitely tell as things are happening. I'll even go a step further and say I do get the realization that some feelings will develop right from the first conversations — and after that, it's a series of very conscious decisions to go through with it, or to distance myself and cut things off instead of letting them play out. Un/fortunately for me, I rationalize almost everything happening in my life.