You are probably a person who makes life-and-death commitments, and once you have made a long-range decision, you aren't likely to give up. This can be either good or bad, depending upon the wisdom of your commitments.
You should be careful to avoid restrictive, emotionally smothering relationships. You may find that difficult, because frequently the easiest way to keep a partner is by being possessive. If your lover is right for you, the partnership will last; otherwise it will naturally end.
However, in a basically sound relationship, your determination will be very helpful if you express it by being extra tolerant of your partner's mistakes and patient with problems in the relationship.