I had sex with my neighbor! OMG help!?

Well I was at the pool at my apartments and my neighbor was there. She is what people would call a milf. She is about 35 and has children that go with their father. Well she was at the pool and I was swimming and she starts doing stretches like leaning down and spreading her legs. I knew she knew I was looking. Well as she is leaving she calls me and ask if I have time to go to her apt. I said yes and things took they're course from there. Now I feel nervous when I see her but why? I didn't do anything bad. ( If you don't have anything to say but call me a troll go screw off because the troll is really the person who calls someone else a troll)