(I have an English keyboard without the Swedish vowels, so I'll type in English.)
If you love sex, and need sex, it's your partner's responsibility to see to that need, just like it's your responsibility to see to theirs. Otherwise you might as well live alone and take care of your own needs.
A relationship without sex play has one foot in the grave. A while ago, me and my partner didn't sync at all. He had a stressful job and I'm a student. It also didn't help that we're opposite in our reaction to stress. When I'm stressed out, my sex drive increases, and when he's stressed out he loses all interest in sex.
This was a huge problem for us, and I felt like I had to drag him into the bedroom every time. It didn't take long before I confronted him harshly and told him to get out of his funk, and start doing his part in our sex life. I felt like shit that I was always the one who had to initiate sex, because he acted as if he was above that sort of thing (I guess it was a defense mechanism). I finally spilled it out, and told him if he doesn't get his I hated his "sigh,..oh...well...ok"-attitude under control, I walk - because I won't leave in a sexually dead relationship where he goes to bed at 8 o'clock on a Saturday night, and I stay up drooling over other guys on the internet, as if I was single.
Shit, SO many people out there are lonely and would give everything to have somebody to share life, love, and sex with.