My exprience of this kind of situation is that one or more things are sucking all your energy. What I mean by this is that it's not just about getting a rest. What you should do is take a step back and try to see what is sucking all your psychological energy. If you are resentful of your cofounder, then something is not right there.
What happens in such situation is that we naturally and often unconsciously start to think about it trying to find a way to handle it, understand what is going on and how to solve the situation. This is going on 24/24 7/7 and this is what is sucking your energy.
Taking a week off is an emergency protection measure you should indeed apply. But this just puts a spatial distance between what is harming you and yourself. Soon or later you'll have to come back to your startup. You probably know it and you may spend this week off continuing to burn your energy thinking about the problems.
So taking a real step back and a week off requires that you completely switch off from the harmful context. This requires will power but you are aware that your health is in danger now.
The second thing to do is become aware that apparently you are failing to solve the problem by yourself the way you tried so far (probably unconsciously with intuitive methods). So you have two options now. One is to take the step back and, after a recovery time, reanalyse the situation rationaly by trying a different approach you tried so far. The second is to get help from someone who know what you are going through and can help you sort out the solution. In both case it is only you that can identify the problems and the way out. The help is just to help you make a difference between what is important, what is not, what are automatic negative ideas and what is truly positive.
You got aware that something is wrong and you asked for advise. That is great because you've done half of the way to get you out of this situation.
Last point. As other people tell you here. Take this problem very seriously and tackle it NOW, ASAP or get the hell out of this situation if you can't handle it. This can kill you by suicide if you don't handle it. This may sound completely stupid and unbelievable to suicide one self, but you may get into a depression state where the pain you feel is so strong and unbearable, the situation seaming so hopless that sucide will look like a very rational and logic way to stop this. You are apparently far from this stage, but this is what you'll find at the end of the road if you don't solve the situation. I don't want to scare you. It is just to show you what is in the balance and why you should react and take it very serioulsy. The earlier you detect it, the easier you can adjust your course to avoid the dead end.
What happens in such situation is that we naturally and often unconsciously start to think about it trying to find a way to handle it, understand what is going on and how to solve the situation. This is going on 24/24 7/7 and this is what is sucking your energy.
Taking a week off is an emergency protection measure you should indeed apply. But this just puts a spatial distance between what is harming you and yourself. Soon or later you'll have to come back to your startup. You probably know it and you may spend this week off continuing to burn your energy thinking about the problems.
So taking a real step back and a week off requires that you completely switch off from the harmful context. This requires will power but you are aware that your health is in danger now.
The second thing to do is become aware that apparently you are failing to solve the problem by yourself the way you tried so far (probably unconsciously with intuitive methods). So you have two options now. One is to take the step back and, after a recovery time, reanalyse the situation rationaly by trying a different approach you tried so far. The second is to get help from someone who know what you are going through and can help you sort out the solution. In both case it is only you that can identify the problems and the way out. The help is just to help you make a difference between what is important, what is not, what are automatic negative ideas and what is truly positive.
You got aware that something is wrong and you asked for advise. That is great because you've done half of the way to get you out of this situation.
Last point. As other people tell you here. Take this problem very seriously and tackle it NOW, ASAP or get the hell out of this situation if you can't handle it. This can kill you by suicide if you don't handle it. This may sound completely stupid and unbelievable to suicide one self, but you may get into a depression state where the pain you feel is so strong and unbearable, the situation seaming so hopless that sucide will look like a very rational and logic way to stop this. You are apparently far from this stage, but this is what you'll find at the end of the road if you don't solve the situation. I don't want to scare you. It is just to show you what is in the balance and why you should react and take it very serioulsy. The earlier you detect it, the easier you can adjust your course to avoid the dead end.