Not so happy with my married life

I am 29 and my husband is 30. We have been married for 4 years but things changed recently. I used to be an out going person and love to be sorrounded with friends and family but my husband is the complete opposite of me and in fact he has gotten worst.We dont go out just to have fun in the pubs or the restaurant, he doesnt want me to each chewing gum at home, he easily gets disturbed with simple things and what more I dont find any more excitement with our sex life. Sometimes I think of somebody else just to keep me excited. I really hate what I am feeling because my husband on the other hand is so nice and caring. Last week i visited my sister and brod in law alone at their place as my husband doesnt want to go because according to him they dont have anything in common and he hates going to the pub. I was introduced to their friend who is also married but right there and then I felt that there was an attraction between me and the other guy. How can you really tell if a guy is interested in you? I thought at first that I am just imagining things but he kept on looking at me and I was afraid to look at him as his wife, his childhood sweetheart is just beside him. But I thought that he was so sweet getting things for me, waiting outside while im using the loo, opening the door for me…

The last day of my visit we went out to a pub and a friend of mine pointed out that this guy kept on looking at me. I decided to meet his stare and I was surprised by the strong emotion that I felt and for a fleeting moment I thought I saw something in his eyes. He sat beside me and order me a drink and we chatted for while, told me that I have smoke too much and so he noticed. But I excused myself because it is just so much for me… But even when were sitted across the room we just kept on giving each other meaningful looks which left me more confused as to what hes thinking.

Now I am back at home with my husband but I cant seem to forget his eyes and his face…I know that it is not right and I just wanted to get on with my life.

I would really appreciate it if you can give me any of your insights regarding my letter.