You often read about people who come into new relationships with emotional baggage – the weight of past relationships continuing to influence the current relationship. This makes no sense. What was wrong before is not related to your new partner. However, if you continue with what was wrong with the past relationship, then surely you will weigh your partner down and that will be too big a burden for the both of you.
By all means carry the learning from the past but do not carry the baggage. Share the learning and the love not the bile and the vitriol of a finished relationship. Always travel light and with hope.