It is quite common that after the arrival of the baby and because of a lack of sleep, couples can see their relationship and even their communication resented. It is possible that you feel upset because you have gotten up 3 times during the night to feed your baby and your partner is sleeping peacefully and you are tired. Is it that your rest is not as important as his? Of course it is!
Sleep deprivation can increase your feeling of emotions and your judgment may be clouded from time to time. So that the (totally normal) situation of sleep deprivation does not turn into a conjugal nightmare, it is necessary to find solutions as soon as possible so that all of you are well.
The arrival of the baby announces a change in your concept of sleep, rest becomes a luxury that seems out of your reach. You may think it's only happening to you, but both you and your partner will be forced out of your healthy sleep routine and into survival sleep mode.
First you have to accept that when the baby arrives, it will become sleepy and that it is an inevitable part of parenting. It is something temporary and you should think about it so it does not affect you too much. Do not compare yourself with others and talk with your partner to organize shifts at night and that it is not always the same who must wake up in the middle of the night to care for the baby. You need to share the load and compare schedules and fatigue for constructive engagement. Sleep and tiredness is a normal part of sleep deprivation at night, but it shouldn't kill off your healthy emotional state.