I take seriously the command to "as much as depends on you, live peaceably with all men". Unfortunately the best you can do with some people is ignore them. But being bothered at a failure of fellowship between people is not " being weak". In fact, God himself exhibits this behavior: "God is angry with the wicked every day."

That first verse above in context, just because the Bible is amazing:

"Repay no one evil for evil. Have regard for good things in the sight of all men. If it is possible, as much as depends on you, live peaceably with all men. Beloved, do not avenge yourselves, but rather give place to wrath; for it is written, “Vengeance is Mine, I will repay,” says the Lord. Therefore“ If your enemy is hungry, feed him; If he is thirsty, give him a drink;

For in so doing you will heap coals of fire on his head.” Do not be overcome by evil, but overcome evil with good."