Accept the one whose faith is weak, without quarreling over disputable matters.” Romans 14:1
Relationships matter therefore we should be willing to make sure those who we come in contact with become better people on account of us being in thier lives. Matters of preference should never distance you from others. A mature response toward differences includes giving others room to be who they are without passing any judgement.
To the mature Paul's words are: “We who are strong ought to bear with the failings of the weak and not to please ourselves. Rom 15:1. Unfortunately when people do not match up to our standards we want to walk away. God wants us to stay and make a difference. To do this you should “Make every effort to keep the unity of the Spirit through the bond of peace.” Eph 4:3