It is really important to give a person some space when they are going through a rough a time. Understand that your significant other is not in a good mood and the last thing they need is you pestering them and adding to their troubles. Stay around, but do not stay too close to them as they deal with whatever it is that is causing them irritation. There are times when giving your significant space is the best support that you can show them. Do not react to anything bitter that they say.
Take a bit of load off your significant other’s shoulders while they cool down. The sort of mood that they are in would surely be making it extremely tough for them to do their routine chores such as taking care of the house. Rid them of this burden by doing the dishes, taking out the garbage, paying the bills, cooking breakfast and dinner, preparing lunch for the kids, etc. Do not avoid doing these things just because you find them a huge inconvenience. Your significant other is going through a tough time and the least you can do for them is to sacrifice a bit of your convenience for a few days.
Let your significant other know that you love them. You do not have to actually go ahead and say these words. Just give them a hug or a kiss to show them how much they matter to you and assure them that you are there to look after them and support them.
Have you given your significant other a gift lately? Now may be the best time to go out there and get something for them. You do not necessarily have to buy something very expensive for them. Just get something that have been asking you to get for them for quite some time now, or a gift that is thoughtful and conveys your love.