Not Sure Why And How To Stop

My good friend got into a bad accident while at work. I’m single have been for a year or so he is married no kids to his high school sweetheart naked Kaitlyn. While she is good looking I had never thought of her that way sexually until the night of his accident. She is skinny small boobs and usually baggy jeans. That night she had on leggings and a shirt she threw on that barely covered her ass. I never had noticed but her ass was nicely shaped and when she belt over it looked a lot like a heart. We where in the ER what seemed like forever and when the docs came out to tell us surgery is gone well and he was in critical but stable condition there was a bit of calm. I stayed a bit longer and decided to leave. His mom dad and wife decided to stay. His mom and dad would not leave and they told Kaitlyn to go home get rest and they could come pick her up in the morning as they only had 1 car and that car was at the shop where he had left it for the day. She left with me I’d give her a ride home as they lived very close to me. Nothing was said the house was dark and she asked me to walk in with her. I did so and while in the house she held my hand she after to cry I gave her a hug and the next thing we knew she was on top of me riding me partially clothed. We fucked most of the night and in the morning. I never left to go home. I did so in the morning and came back to pick her up and take her back to the hospital. She had showered and was dressed to go. Before we leave I grab her by the hair bend her over pull her jeans down and separate to fuck her again. This time I ass fucked her and shot my load pulled out and as I did so she cleaned me up. We left spent the day at the hospital I left for a whole came back took her home to my place and again fucked. It’s been 3 months he is back at home we tried stopping but every time we got a chance it’s on