Suggest Treatment To Increase The Size Of Penis

dear doctor, 1 am 40 years old, After my college days my friend compelled and had homosex with me. after first time i also liked to do. it was continued around 12 years. after 12 years both of we get married. my pennies are very smaller & thinner than my friend one. After the marriage he started to do have sex with only his wife. When we had a homosex i was a passive member, hence i expected todo have a sex with him. both of we had kids. still i expect sex with him. but he totally escaping from me, due that my sexual feeling geting reduces with my wife. i know i am doing mistake. but i am trying my level best to control but i could not succeed. my wife is also not showing intrest in sex and diverti my mind. my friend occassionally he is trying to have a sex with me if his wife is not available. what shall i do

srish