You need to talk to your partner about not being supportive. If he/she loves you then he/she should support you in whatever you do. I couldn't manage without my partner, he lets me moan at him when I'm upset, makes dinner and cups of tea when I'm busy, lets me bounce ideas off him, and helps me with data analysis and other boring tasks (he actually types reams of boring things up for me when I'm too busy to do it myself). I'd be lost without him. You really need a lot of support when doing a PhD, I think you'll struggle if your partner isn't supportive.