It's not always easy to tell if someone is attracted to you, but there are some definite signs that your mother-in-law may be interested in you. If she frequently flirts with you or makes sexual innuendos, it's likely that she's attracted to you. She may also touch you more than usual, stand close to you, or make prolonged eye contact. If she compliments your appearance often, it's another sign that she finds you attractive. Of course, these behaviors could simply be friendly gestures, so take them into context before making any assumptions.