Can’t orgasm during sex

So long story short the last time I orgasmed during sex was 6 months ago. For some reason I just can’t seem to do it anymore but the only time I’ve ever cane close since then was when I had some clit stimulation. I’ve told my partner that I need this but he just doesn’t seem interested in trying. He doesn’t last very long and I’m never satisfied with it. He’ll eat me out until I come but other than that I don’t orgasm unless I use my vibrator. I want to have orgasms during sex though but he really doesn’t seem like he cares. Any suggestions on what to do?