I'm going to discuss my relationship and sex life with my friends
Why do you want to share that part of your life with your friends?
Because I'm a good girlfriend and I want them to love me.
Just understand that its possible that your friends may not be interested in wanting to hear this. There are some things that you can keep to yourself if you choose.
They are my friends, they love me and I love them.
You are right, you should be able to share anything and everything with your true friends. They'll listen and if you need it, give you advice to help solve the situation. However, just understand that there may be times when your friends may just want to joke around instead.