My question involves criminal law for the state of: Pennsylvania

The week of thanksgiving I visited some friends in Philadelphia area and ended up at a friends house to sleep. In the process of ending up there we were drinking and my friend had gone to a rock concert before she had arrived at the pub that I was at to visit. At the time she came in she was intoxicated but nothing more than I had seen before due to the fact that I have known her for 6-7 years. Granted I hadn't seen her in a while I just assumed she was just acting like herself etc. Of course I have had a few drinks to so I know my thinking side was a somewhat impaired. We have had a thing for each other a few years ago and nothing really came of it. But that night while visiting she had agreed to let me and my buddy crash back at her place. While at the bar she needed to charge her phone and disappeared almost to closing of the bar. At that time She called her roommates to make sure it was ok and they had agreed as well.

Finally we(me and my friend) got home with her and out of the cab and she walked down the street and we followed not really knowing where we were going just following her to our final destination for the night. At that time she fell down on the sidewalk apparently tripped and I had to help her back up. Nothing seemed out the ordinary she just was simply drunk and so was I. As we got up and turned the corner to her apartment we went inside went up the five flights of stairs and we talked a while when she told me to come to her room. I did and we both just fell on her bed and passed out for a few hours between 2:30 and 4 I'd guess. At some point when we both had woken back up we started making out and kissing she and I started to get undressed to just fool around she had told me that she didn't want sex which I was perfectly fine with.

Back to the bar for a moment. Multiple witnesses where their watching her bump and grind all over me and were kissing and talking about sleeping together that night. We did some shots there at the bar and everything was poured by the bartender and no one that I knew of messed with any of our drinks. Also she bit my neck several times leaving some bruising and teeth marks. But I didn't really think a whole lot about this cause I have seen her do it before and this was not out of character for her.

After fooling around with no sex I did put my fingers in her vagina to get her off. Shortly there after we both fell asleep again. We woke up a few hours later hungover and actually kissed and we talked for a few minutes and I showered at her place then my friend and I left her house. We were good when we talked that morning.

One day later I get a message from her that she freaked out on that Sunday afternoon and after consulting a friend about some bruising in her pelvic region she went and talked to the police. She gave a testimony and had told me that she doesn't remember anything past 1AM that night and nothing till the next morning when we talked. I had told another friend about the happenings from the night before and I felt that everything we did was consensual. I complied to her request of no sex and ultimately we just fooled around and went back to sleep. I never saw any evidence of her not being able to remember anything and we had fluid conversation the entire time.

I guess my ultimate question is that she has now spoken to the police and given a statement they obviously want mine. The complainant and I spoke once on the phone after the incident and I told her how sorry I was over and over again. We did talk about the happens of that night and I again reiterated to her that we did not have sex at her request. I did not know that she might have been potentially drugged. In my mind everything was just going great and we were having some fun. I believe that this is just one huge misunderstanding between her and I. A detective has called my phone and asked me to call them back. They waited almost 3 weeks to call me back after her initial contact with the police. I guess I'm trying to figure out my rights since to my knowledge there is no charges filed against me. It is in Philadelphia and I do know the police can be very corrupt there. That is beside that point though. I'm trying to figure out if I can just simply remain silent as I have already apologized to the girl and not talk to the police. I live out of state now. Also how do I find out if any evidence or drug test was administered to her to find out if she was drugged. I feel I have commited no crimes against her and would like to see this go away very silently. Should I contact a lawyer or simply give an honest and complete statement to the police? Again I feel I have done nothing wrong and this is one huge misunderstanding.

Thanks for you reads and concerned,

Extremely Stressed out.