I disagree that you don't need time with your partner, but maybe it would be healthier long term to find ways of having time together with baby still around.
We went through a stage with our child where we couldn't go away because of her medical needs. For most of the time, we had to be in the same room as her.
We played board games sat on the floor of our bedroom whilst resting take away pizza, things like that.
In fact, the most romantic wedding anniversary we've had since she came along, she was only 2 weeks old, and she was in her moses basket and we had a lovely meal together at home. We've also taken her to meals out and parties. That sort of thing is a lot easier when they are so young.
Time together alone is really important, but it's also not very practical to have much of it right now. So find ways to nurture your relationship which dont involve being away from baby. Go on days out together with your child.
I remember a lovely date I had with my husband. We visited a lovely pub, and then on the way home, we had a sunset stroll along the beach before snuggling up on the sand whilst eating fish and chips. It was nauseatingly romantic, but also quite lovely. The moment wasnt ruined by our 3 week old, in a sling on my front...