There is no need to apology you have not or done anything. I don't have any issue with anyone inviting me to discuss their beliefs but I think it has to be done on a personal Laval not on a forum of this type so that I can question the invitee. It has been done with me before by a nice gentleman from Syria. He invited me to read Quran I accepted he gave me a Quran on a condition that when ever I read it make sure that I have taken a shower. I agreed and he gave it to me and I kept my end of the bargain. I read first six chapters and asked him a few questions. I have not read it since in a few year I offered to return him he told me to keep it and read it further If I wanted or you I could give it to someone who wanted to read under same conditions. I still have it.
To me it does not matter for how long Muslims have ruled the only thing important to me is the content weather it makes sense to me or not. It took me some time to dispel the beliefs I had in a religion that I believed in and I am not ready to replace it with another one just for the sake of having a religion. You have been polite and courteous to me so shall I.