Lovematism is the passionate magnetic bond of lovers connecting the body, heart, mind, and soul. Body = Sexual Magnetism, Heart = Emotional Rhythm, Mind = Mental Hypnotism, and Soul = Spiritual Mysticism.
There are only 37 common words and phrases ending in "matism" per http://www.onelook.com/?w=*matism&scwo=1&sswo=1 Including Sper"ma*tism\, n. (Physiol.) The emission of sperm, or semen. (which made me laugh!)