Wanting

About two years ago I began work with a new company and I was introduced to a man who is married and also knows my husband because they have worked together for the last six years. Actually the three of us worked together in the same building so we all know one another. I found myself completely attracted to this man and I have never looked at another man before since being married to my husband for twelve years. There is a physical attraction to this man for sure I can't stop looking at him or thinking about him.
I do believe the attaction is mutual because we often times find one anothers stare and hold it for a long time and he always smiles at me and makes it a point to say hello. I once got a hold of his cell number and texted him hello. He did respond to my text but im not sure if he knew it was me texting him. I told him my name and he took a while to respond back but he then did respond with wrong number.

since this text I stopped texting him and even though he has not text me back he still looks at me all the time smiles and even has begun to ask my husband questions about me and tells my husband how great I look. My husband no longer works with this person he was transferred to another building but when ever my husband is in contact with him he asks about me. My co workers have begun to notice how much this man looks at me and only me he says hello to. I'd like to text him again or talk to him but It's hard to find him alone and being that everyone knows my husband all eyes are on me. We are always watching eachother like it's unspoken but the attraction is there. I'd like to take it further but if I text him again I don't want him to respond wrong number.