Everyone knows that Iran is a Muslim country, but the relationship between Iran and Saudi Arabia is very bad. However, the relationship between Qatar and Iran is very mild, which has aroused strong dissatisfaction from Saudi Arabia. Therefore, this dissatisfaction has not been resolved, leading to a stalemate between the two countries and becoming hostile countries.
At the same time, Qatar Al Jazeera, which is invested and built by the Qatar government, often publicizes and reports Iran's important position in the Muslim world and the Islamic world, and its direct support for Iran even causes dissatisfaction in Saudi Arabia. So the relationship between their two countries has been bad. At the same time, Qatar is regarded by Saudi Arabia as the biggest force supporting the Muslim Brotherhood, which also makes the relationship between the two countries worse.
For the above reasons, Qatar and Saudi Arabia have always been in a hostile state. Some time ago, the two countries actually cut off contacts. Everyone knows that the biggest foundation between countries is interests. Churchill famously said that there are no eternal friends, only eternal interests. Indeed, in some countries, contradictions and struggles are all related to their own interests, and there is no absolute right or wrong.