I am an 18-year-old girl and it is my first year in college. I am also involved in my first physically intimate relationship. At the beginning of the relationship, I was having a lot of problems with feeling sexually aroused and being physical with my boyfriend. It made me cry almost every time. Then, I remembered some experiences involving adult sexual behavior (both physical and conversations over the phone) with my best friend in first and second grade. I had not thought of these experiences in years, and the memories, even now, make me feel sad, scared, and sometimes guilty.

I remember being afraid to see her and being very upset as a child about what we did. I don't remember much, only very small snippets of what happened here and there. I went into therapy at school, and I can be intimate now without crying, but these memories still bother me and I just want to know what to call it. Is this child-on-child sexual abuse, or just little kids exploring?

My friend has only been at college for two weeks, and she has already had sex with several guys. She is having safe sex, so it's not dangerous in that sense and she claims to be enjoying herself. However, it seems to me that such behavior is unhealthy and damaging to one's emotional state and reputation — but I'm not sure how to explain to her how I feel, or articulate what is wrong with her how she's acting. Do you think what she's doing is wrong, and if so, how should I confront her?