How do i refrain from my nosey friends?

i have a habit of telling my married mates all about my "single girl " life. they love the stories. im 22 and im having ual relations with a new guy now. i really like him and dont feel its fair to blab like i have done in the past. so when they are being nosey what do i tell them? ive even suspected some of them may be getting off on it but considering they are my friends this is highly unlikely and anyway they are married. in this instance im not gona kiss and tell, am i right to do so?