He showed his interest in me, and I think I goofed

I was about to show him im interested.. but think i screwed it all up.. How the heck do i fix it.. I've had my interest at a guy at work for the last 6 monts, and although he never said it, i had the impression by his actions the feeling is mutual.. He'd say silly stuff to me when he sees me whiling passing by my dept, my coworker told me he seems to look for me when I'm off, he's peeked at me by the corner of his eye, and glanced at my "girls" on occassion.. We've small talked before, and I felt a connection. I know he's heard from my coworker that I'm interested. Once I tried to get him to see a comedian with me but he said thanks but no thanks its not his thing. For the week after that he made a point to be extra nice to me .. (almost like he felt bad). Last Tues while talking with the loss prevention guy and a guy from another dept, he paused while walkin to the backroom and while talkin to all of us strictly made eye contact with me, and again looked at my gals. My coworker even mentioned there's somethin goin on there. I planned on giving him my number that night so I jotted down my number, wrote if u ever wanna talk, chat, etc call me.. I had a customer at the last minute, and forgot about it and left it sittin on the counter. My dept manager found it and well informed the assistant manager. The assitant manager asked me about it, and slapped me on the wrist for it and said it was inapprorpiate.. I mentioned he had been looking at me and then she wanted to know if i wanted to file a complaint. I didnt. I know the assistant manager talked to him. He did say he felt comfortable working with me. Today was the first time since that happened that him and I saw each other. We didnt say anything. There was no tension. he didnt look toward my dept at all like he normally does, however, he did make a point to pause in front of it while talkin to a customer and another time to an employee I feel so bad that my stupid mistake led to this.. its a phone number..nothing sexual. All i wanted to do was give him a way to contact me off work. I dont know if he felt embarrased because i mentioned he was checking me out to the boss or if he thinks im turned off by that. He's 28. I'm 35. I havent dated in a while, and havent dated ones i work with, but there's something about him, that makes me wanna get to know him better outside work... I dont know what do to. I want him to know i just wanted to pass my number, and didnt intend for it to result like this.. i thought of an im sorry card.. or lyrics to a song.. just feel like showing him how sorry i am about misunderstanding and didnt mean for the drama Thanks..

That is certaintly a crazy situation, but honestly, the only advice I can give, is let things simmer down between y'all for a little bit. No matter the age, drama such as the manager trying to keep everyone professional, may not seem to bother him on the outside; but face it. That's.. embaressing. So let things cool down, and instead of passing your number, apologize to him face to face. And if you feel confident enough after that, ask him to coffee or something. Don't jump too quickly!