I become grumpy with my girlfriend if we don’t have regular sex

DEAR DEIDRE: I BECOME angry and get into bad moods if I don’t have regular sex.

I am a 27-year-old man. My girlfriend is 25 and we have been together for three years.

We are very much in love and get on well as a couple but we only have sex on average once a fortnight, if I am lucky.

She doesn’t seem to mind and thinks that is enough, but it isn’t for me.

For the first couple of years our sex life was brilliant. We couldn’t get enough of each other but then it went downhill.