If I find that my partner who has been with me for many years is cheating, then I will definitely feel a heavy blow. At first, I will probably lose my mind, get emotional, lose myself and even try to escape. But slowly, I will start to calm down, and then I will try to wake myself up and think about what to do next.
First of all, you need to protect yourself and see how you want to handle this matter. You should not rely on the warmth of the other half, but be a strong self, although you may face many difficulties. Then you should avoid depression and try to enjoy life, because wherever you go, you should look forward. Then, try to communicate, ask the reason of the other half clearly, accept the facts as much as possible and get a kind of psychological support.
If you want to keep your feelings from being implicated, the best way is to respect your own ideas, give the other half the corresponding space to do what you think is best, or rely on friendship to solve such complicated problems. No matter what the other half is like, the most important thing is to always stick to your ideals. One can live a happy life and believe that there are more beautiful things waiting for us in the future.