DEAR ABBY: I am a 54-year-old single woman who recently started dating again after four years of total abstinence. My two adult daughters, ages 18 and 22, live at home with me. My dilemma: I am smitten, to say the least, with an attractive, supportive and very loving man. I have invited him over and introduced him to the girls, which went well until the other night, when my 22-year-old overheard us being intimate (her bedroom is next to mine). There was no screaming or anything lewd, no nudity or PDA, but I happen to have a slightly noisy bed. She ...