Can Undercover Agents Also Become Close Friends?

I'm an undercover agent, but I have a best friend here. We go on missions together, live together, and do everything together. So, since I didn't have time to deliver the news, I was put on my master's hit list. My best friend comforted me, our names finally appeared together on the assassination list! Still stuck together! Me:…… Back to the present, I have a close friend who is very stubborn. So I decided to knock him out, but as mentioned in the preface, we had a very good understanding. ——So in the end he knocked me unconscious. This matter is really too complicated, how should I put it—— A best friend should be a best friend! Don't add weird elements! Intention: Never give up