My boyfriend never wants to have sex
Me and my boyfriend are together for nearly 4 years and we rarely have sex. I would say once a month and we are very young. We used to do it quite often before but now almost never. I love him and I know he love's me. He is always with me pretty much every day and I know all his housemates. (girls though). We spend all day together and it is amazing we always talk about getting married etc and we imagine ourselves together for a long time. We are our best friends. He has cheat long time before because I know although he denies it till today. But every time I want to see his sell phone he gets angry and never wants to give it to me but than when he gives it to me there is never nothing just our messages and his male friends missed phone calls and family. Every time I get a change I look through his sell phone and there is never nothing. I think its weird because all our couple friends I know have sex all the time, and we don't. Is this normal?? Is it normal to not want to have sex and still love a person very much and be happy with her at the age of 20? Because I never want to do it.. neither he does to seem to... I am very worried PLEASE HELP MEEEEE. I don't know what to do or think.