Friends of the opposite sex

My fiance and I were talking the other night about the friends that we used to have and hang out with before we started dating each other. We both have had our fare share of male and female "friends". Now when we became serious with our relationship, I stopped talking to all of my male friends out of respect for what we have. Now him on the other hand feels that it isn't a problem for neither him or me to talk to our friends. Now my thing is that due to the fact that these were people that we used to date, mess with, or have feelings for, he's saying that it's ok. I'm totally in disagreement with this. My thing is what is it that you can talk to your female friends and visa versa that you can't talk to me about? We're supposed to be united there shouldn't be anything that you can't come to me about. His response was, if we get into an argument he can go and talk to his female friend to get a females point of view about the situation. Again wrong answer. Females love to hear about a man having problems in their relationship because it gives them room to try to squeeze in. Now I'm not talking about all females but you know who you are. Now I don't want to come off as controlling or anything in that nature but I have standards. I do not agree with any male or female who are deeply in a relationship talking with the opposite sex as friends. Now I was told that even though I'm stating this to him, and he's not in agreement with me that it can lead to him sneaking around because I'm being unreasonable. Is this true? Is that too much to ask for in a relationship? He's telling me that it's no big deal but I think that it is with him because he's always stating that he doesn't talk to anyone anymore like he used to. I feel that if were to go that route about it then we'd be more on a friendship basis. Am I being unreasonable??