to be honest with you now you sound like you are feeling a tad bit sorry you did it. the guilty feelings will creep in.

let me explain myself on all my thoughts I have posted to you. please know that I do know where you are coming from. been there done that thing.
anyway one husband I had was a sex freak. he wanted it all the time and with whomever. He wanted me to go out with other men, have sex with them, come home and tell him about it. did it hurt? you bet it did. I felt like I wasn't good enough to please him. I did end up going out a couple of times with others and like you I was very young. did it mess me up later? you bet it did. I did overcome that for the most part. I know he had other women too and it hurt so much I didn't think I could stand it. I have been on both sides of this fence.
yes children know things are not right in the home. my parents use to argue all the time and I did with my ex. I exposed my children to those things and they suffered for it. I had to work 2 jobs to support me and my kids. it is just not worth stayng where you are beaten and abused. the kids would be much happier too. thanks for reading if you made it this far.