Yes but one more chance.

People rarely change. If the bad behaviour was caused by an excessively gruelling time of trial then it may be forgivable, however if the person is habitually as unkind as they are permitted to be on the presumption you ore others will not respond in kind, then, given the great difficulty in severing ties, breaking bonds and moving away from long standing unions, it is probably better you move on having grown stronger and learnt from the ordeal. Some grow wiser, mellow and become mature beings whilst others ingratiate themselves by supercilious acts of conciliation whilst continuing in their ingrained behaviour towards anyone willing to tolerate such domineering oppressiveness. Wisdom dictates all levy’s be paid in this lifetime to deter forfeiture of a clean slate and release from the debt our inherited genes and their intrinsic law of karma have begotten us, therefore it is preferable if possible to resolve all differences and enmities or misunderstandings lest we incur the type of negative energy emitted by those who hold a grudge against you. The mature person not possessing any desire to carry skip loads of emotional baggage in the guise of hate or animosity will be forgiving through understanding the human frailty of others, or be able to affect indifference and dispel from ones consciousness any such thoughts that may harm peace of mind and clear conscience. Intellectual integrity and moral astuteness immunise the spirit from affliction of such dexterous anger from retentive personalities likely to focus adversely with hatefulness in our direction.

A lot depends on what they actually did, without knowing the details, it is difficult to give proper advice.