People are social animals, and everyone has their own social circle, and they can't escape. There is no need to avoid all the opposite sex for love, which is meaningless. They're not with you. No, proper relationship. If the feelings are deep enough, you won't let others take advantage. What you do is not to express your sincere feelings for him, but to isolate yourself. When you lose a friend, you also lose the initiative in this relationship. I don't know if he asked you to do this, but if he didn't do the same thing for you, then you really don't have to do it.
You have lost contact with many friends and colleagues, and they will think that you can't separate love from work. You have abandoned many other feelings for love, and these friendships can't be made up if they are lost.
In fact, there are many other feelings besides love, but it is not worthwhile to abandon others just for love.
Now, you may be immersed in the sweetness of love, but what if one day, the love you believe in and pay for disappears? Then what should you do? At that time, there was neither love nor friendship, because you had given them up. Proper contact with the opposite sex is necessary and unavoidable in this society. We are all modern people, so don't always arm ourselves with feudal ideas. If you trust each other enough, and the other person trusts you enough, these are not problems.