Has anyone ever affected you so quickly?

Have you ever found someone that captures your mind so quickly? I found this person about two years ago, I met him at a party, from that one evening with only a little interaction between us the thought of him kept entering my mind. He had a different energy than most and that is why I was pulled towards him. He was truly full of life and seemed to understand and enjoy the sear basic joys that life gives. It didn't take long after that one party that we started hanging out and in a short time created a semi-close bond. It seemed that with more time something more might of came from it, but at that time there was another lady in his life who he was able to see more than me so as is natural they ended up together instead, which is fine and I wasn't taken back by it. I was in a mess of a semi-relationship myself at that time and was spending most of my time trying to end it smoothly and fix myself from all the damage that it had caused me. Since I was in that position I wasn't displeased that he linked up with another who was able to spend more time with him. I was happy to have him as a friend and to see him happy.
 In any case time moved on and past us. This summer I started chatting with him again now that I realized he was back from his abroad trip and hopping to get to hang out with him again since I was missing hanging out with someone of that kind of energy, to be with someone else who enjoyed climbing up a tree and just hanging out for a bit without worrying how silly it looked or any of that bs.
 It wasn't long after that I realized for whatever reason he was single free again. Anyways now we live in different towns so when we've both had free time I've made a trip down to him. It didn't take long for things to flare up between us, and although we aren't really anything right now and in reality we haven't even gotten to hang out that much, my mind is infected with the thoughts of him. More so I think because I just really enjoy his presence. But it seems in such a short period, both times this has been the case. Has anyone every affected you like thus?

Anyways besides that and more on that topic that I'll probably say at a later time. I completed another painting a bit ago, I'll post a picture as soon as I take a decent one. Also I've stared a new one, inspired by this one guy of course. I'm painting a lion right now. When I first met him, it was at this jungle/animal themed party and he was dressed as a lion.