Anyone who is single and attracted to someone who's married with children should just have their head examined. Yes,  that is what I said. It will do us some good to look past the lustful attractions of beauty, fame and fortune and see the reality of this scenario. Weather the children are infants, teenagers or adults the resentments run deep into their blood and often times are acted out in violent ways. Kids, no matter what, always want their original parents to be together. Any effort on  yours or my part, to win their respect or love, will never out weigh how a family was originally intended to be through the  the eyes of the children that are involved in the break up.    
she's available

Being Single And Attracted To Someone who Is Married

Let's just say that being single and attracted to someone who is married is the perfect recipe for disaster. First and for most,  what if you land this married person and get involved in a love relationship with them, do you think you could ever trust them? My point is that in order for them to be with you, they broke someones trust. So tell me why wouldn't they do the same with you or me for that matter. Ive seen enough movies in my time to know that jealous spouses often times go off of the deep end, even to the point of murder sometimes. In fact in my home town just about 8 years ago a woman was murdered and it was discovered that her husband was behind the entire scandal. He was having an affair and thought that by disposing of his wife and getting the life insurance money everything would be just fine. Cops are not as stupid as people think. Just watch a few episodes of reality TV and you'll see what I mean.

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Being single is difficult at times but there are millions of single people to choose from on this earth. It is not necessary to destroy a family with children over an attraction to a married man or woman. I personally think it is wrong  to be attracted to someone who has a family and is married. Even if they are unhappily yoked with their spouse. To admire someone from a distance is OK if it is kept under  control and in secret. When action is taken then in my opinion it is wrong.
he's not married

Being Single And Attracted To Someone Who's Married With Children

Is It Wrong To Be Attracted To A Married Person?

article about being single

We should first ask our selves this moral question, is it wrong to be attracted to a married person?What are the standard code of ethics that you would normally live by, are they acceptable in God's eyes? Do you even believe in God?  As I recall, one of  the ten commandments is “thou shalt not coved your neighbors wife.” One of the things I have noticed is that if there are any drugs or alcohol involvement this drastically impairs our ability to answer this question. People who are under the influence of substances cannot answer this question with true moral character assessment. No matter what the case, everyone will have to account to God and also be able to live with their conscious. Only you and you alone can honestly answer this question of weather it is wrong to be attracted to a married person. Perhaps it is not wrong unless the attraction is causing difficulties in the married persons life.  If it is a secret attraction then only you and God know about it.   Ultimately your moral standards will be the guide that you must use to answer this question.