To those ,including myself, who find it hard to "love and tolerate" all the time know that this is an impossible feat. There will be days when you slip up, say something mean, or generally make an ass of yourself. What is more important and arguably a part of loving and tolerating is the ability to realise you made a mistake and own up to it without a fuss. Now when you apologize or own up to a mistake you aren't owning up to the person you have done wrong to. Mainly, you should be apologizing and owning up to a mistake to yourself because you dipped below your own standards and you know you are wrong. The only person who can really hold you accountable for your actions is yourself.