Attracted To Coworker

I’m a married man, age 30. I am in a very uninteresting marriage life. My wife is not interested in anything - she has no hobbies, no motivation to do anything in life, wants to work but doesn’t want to study. She acts as if she is interested in sex, but she can go without sex for months. I have never seen her initiate sex with me. Despite of all these, she’s a very kind person and helps people the best she can and that is why I love her. I’m into sales and have started crushing on a coworker who is beautiful and extremely passionate. I get hints that she likes me too but she is stopping herself bcz she knows that I’m married. I’m not sure what to do with my life.