If a woman is attracted to you, she will always let you know one way or another. This is something every man, single or married, should keep in mind.
Yesterday I was at a local summer event. I was sitting by myself, waiting for someone, so I had nothing to do but drink a glass of the local red and watch the behavior of the people. I noticed one middle-aged couple; she was tall, slender, and moderately attractive, he was nondescript, mostly bald, but a little taller than his wife and generally fit.
There were tables laid out on the outdoor basketball court, but there was still an amount of room around the basket. The wife picked up a mini-basketball, shot a desultory layup or two that indicated she had played some basketball at one time, then held the ball up and waved it at her husband. He dutifully came over to play defense, at which point she did a credible Charles Barkley/Moses Malone impression and ground her ass into his crotch, backing him up and then turning and shooting a jump shot.
It looked legitimate enough, except that the second time she did it, she shot him a coquettish look over her shoulder and stuck her tongue out, which made him laugh. It was obvious that they were a happily-married pair, and it didn't surprise me that their children appeared to be happy and healthy. And it was also obvious that she had only picked up the ball as an excuse to physically demonstrate her affection for her husband, even if there was no chance she would ever admit it to anyone, least of all her husband.
Women always find a way of letting you know how they feel, in both a positive and a negative sense. Learn to pay attention to those signals, and don't disregard their implications.