Married with a big crush. Help!

I am 37 and married with 2 children. My husband is 36. We´ve been together for 15 years, married for 10. Basically, I have a crush. A big crush on a dad at my kids´ school. We don´t know each other and our kids aren´t even in the same school year. We coincided at a school event, although I had previously seen him around at the school gates, and we both noticed each other. I turned to look at him and caught him staring intensely at me. The stare went on for a few more seconds than it should have and ended with me looking away. I could feel him glancing over a few times and I did the same. The next day we dropped our kids off and he had a mega watt smile and a hello for me. From that day on we say hello, smile and nothing else. I don´t even know his name. I am physically very attracted to this man. However, I have no intention to take it any further as we are both married and with children. However, his effect on me is affecting me. Im sleeping badly, my appetite is affected, and I am questionning my marriage. I got my head around it a couple of weeks ago and felt much better, plus he started to avoid standing near me and I didn´t see him for a few days. Then, last week he was there again, gave me a huge smile, looked me slowly down and up then he left (not the first time he´s looked me over). It just left me stunned and all those feelings I had got under control, started to reappear. I keep getting mixed signals from him. One minute he´s all friendly, the next avoiding me like the plague. I have to admit I do the same. I feel like a school girl again and I feel stupid because I am 37, not 14. I am literally shaking after seeing this man each time :confused: My OH is away on business and has been gone for a month (he´s back this Thursday, thank god). I think all these confused feelings I have are due to feeling lonely. It´s also making me look at my own marriage very seriously and I think that´s why I am so upset. I nearly left my H in 2010 as he rejected family life (he´d go on boys´ holidays, etc). Now, our marriage is stale. We are both like "flatmates" and we havent had sex for 18+ months. We recently celebrated our 10th wedding anniversary and I dressed up to the nines but he didn´t notice :-( I look after my appearance but I do it for me now as he never seems to notice anymore. We started talking before he left on his trip and I told him I was unhappy in our marriage. He said he was unhappy "sometimes" and he blamed me for the lack of intimacy in the bedroom... I haven´t told him about my crush. I think it´s time we did some therapy or at least I should. Please don´t judge me for this. I didn´t go looking for a crush or attention and it´s completely bowled me over. This has never happened to me before. I haven´t cheated and don´t intend to, but I´m having a really hard time dealing with these feelings and would appreciate some support and advice. Thank you.

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