Heathcliff Quote

Taken from Google Images

Discuss the meaning of this quote as it relates to the novel and Heathcliff's character:

Heathcliff: “I heard of your marriage, Cathy, not long since; and, while waiting in the yard below, I meditated this plan—just to have one glimpse of your face, a stare of surprise, perhaps, and pretended pleasure; afterwards, settle my score with Hindley; and then prevent the law by doing execution on myself.  Your welcome has put these ideas out of my mind.”