Here are the natural gas prices for Europe: https://tradingeconomics.com/commodity/eu-natural-gas If you look at the price from summer 2021 on you will see a sharp rise in prices. The reason was that Russia stopped supplying the spot market. https://www.martenscentre.eu/blog/how-gazprom-manipulated-th... Russia also bought European gas storage capacity to let it sit empty and worsen the situation. All of these actions did not make much economic sense. They did however make a lot of sense when Russia invaded Ukraine and tried to use the gas supply for black mail. Their bad luck was that their hegemon China did not give Russia permission to invade till the end of the Chinese winter Olympics. Olympics ended on the 20th and invasion started on the 24th of february which made the gas threat far less potent.

I know Lenin said: "The capitalists will sell us the rope with which we will hang them" but to suggest continuing the business relationship with Russia is beyond silly. It would show that Germany has no rudimentary survival mechanisms and put its viability as a political entity in serious doubt.