Why are men so difficult to understand?

Ok. So, there's this handsome younger guy in my culinary cl and he calls me just about everyday to talk about little things or just to blow off steam about a cl happenings. He's made little comments (while in cl and in front of our peers) like "You're so cute" or I love the way you laugh. This has caused many blushing and awkward moments in front of my peers. He's married and has kids. Though I think he's handsome I do respect the fact that he has a family. How do I keep ignoring his advances without being a jerk about it. He asked me to "Link up" one day. I would like to hang out however, without any other agendas, just as friends. One day the chef instructor yelled at me and I guess I was embared by it, he called me and told me that he was looking at me from accross the room and he saw how my face turned rosie and how he just wanted to get his buddy (me) out of that situation. (I was a little embared by his admission that I just kinda cut the conversation and told him I had to go )Worst of all after thinking about what he had just told me I fell asleep that night and dreamt about him kissing me....What can you make out of this? I am so confused I don't know what to even think about it. I want to call him and tell him GET OUT OF MY HEAD!!!! But he'll probably think I am crazy. LOL. I don't want to be a part of breaking a family. Not my Style. I've tried to ignore his advances however, I'm growing weaker, I'm scared of falling and making a mistake and getting emotionally attached. What can I say, He's cute and I believe he finds me attractive too. What to do?