My girlfriend doesn't want to have sex anymore and she doesn't want to talk about it, how do I solve this issue with her?

I am a 28 year old man who has been in a relationship with another 28 year old woman for 18 months living together for 1 year. Our relationship is pretty good except for the lack of sex. We both love each other very much.


At first she wanted it all the time almost daily, but gradually over the months it became less and less frequent from 3 - 4 times a week to weekly to fornightly then after 9 months once a month if I was lucky and this has persisted until now. She says she loves me and she's still attracted to me, she just never wants sex with me or anyone. She's never in the mood, and she never initiates things...the only time we do have sex is if I ask for it repeatedly then eventually she would give it too me out of pity I guess. This dragged on for four months and was a constant source of arguments, now I don't even ask all that much as it just disappoints me though I still feel just as unhappy and unattractive and miserable that my girlfriend doesn't find me sexually attractive which she says se still does but I obviously don't believe.

She doesn't seem to want to talk about it with me it just seems to be a thats the way it is sort of thing from her end she won't talk to a doctor or anyone, well she probably talks to her friends but not me about it. When we started our relationship we both agreed that an enjoyable sex life was a key ingredient to a relationship and she was the aggressor most of the time, now it doesn't seem to matter at all.

I have tried explaining how I feel for months and nothing has changed no trying anything now I just keep quiet but that hasn't worked in the last 3 months either I feel quite insecure because I guess now I am just waiting for someone to come along who she is attracted too.

I feel selfish and silly writing this but after 9mths I am out of ideas and don't want to spend the rest of my life in a sexless relationship! Please help!