Need advice on this one!?

I separated from my husband about 2 weeks ago. We have been married for 7yrs. and have a 6 yr. old. He apparantely, called an escort service by looking up some pic of a ho in the internet. He then was afraid he contracted something and then revealed all to me just in case I got infected. I was flabbergasted with the revelation! We are in the process of waiting for results of bloodwork from any STD'S/HIV. He said he used a condom. I moved out and am living w/ my parents. We had been living at his parents but after this whole incident, I was the one who took off to my parents house with my daughter. We just live about 8min. away. For the sake of my daughter's emotional aspect, I will not talk bad about her father in front of her and I will remain very diplomatic when talking to him on anything about her. He has hurt me emotionally with this revelation and has put my life in danger. I am the one who is calling the shots now as far when my daughter can see him and I make all decisions regarding her. He has to submit to my rules. I don't deny her seeing him and when he calls for her, I let them talk on the phone. I am suspecting though he wants more say with her and I firmly believe his mom who he is extremely close to, is putting crap in his head to find out his legal rights. I will not deny him seeing our daughter but I'll be damned if he thinks he has big say in her. He broke this family and put me in danger. Should I be bothered by him trying to find out his legal rights when we are separated? He wants to know what his legal rights are as a father now that we are separated?