Try to look past his foibles and see the friendly fellow underneath.
An example of a foible is when someone always chews with their mouth open instead of closed.
The man could tolerate his companion's foible because it was covered by his many admirable qualities.
His foible was omnipotence, and he aped the gods of Greece in turn.
The minor foible in the woman's character made her unsuitable for the career she really wanted.
The foible is the part right under the tip.
Everything in between the forte and foible is the Center of Percussion.