Forgiveness

Saints I am surrounded by people at work that I know are not real, what I mean by this is they are gossipers, liars, untrustworthy, it is so hard for me to say Good Moring to them. I know Jesus said we must love everybody, because if we don't how can we love him whom we have never seen and hate our brother whom we have seen, he says that we are a liar and the truth is not in us.  So, what I have been trying to do is avoid people like this but in my work environment you cannot always do this. I ask the Lord to forgive me for thinking horrible things about these people but the truth is the truth, my question is how many times is he going to forgive me for the same offense of not loving these people?