The masseter muscle (muscle of the jaw, of mastication), (orange area) is located in front of the ear, from the lower jaw to the outer side of the eye. (Masseter muscle – Wikipedia)
Referred pain (red area) of contracture in the muscle (green area) is in the suborbital, or maxillary area, associated with dental pain in the upper molars that become hypersensitive to pressure and temperature variations.
Ear pain is also possible.