2-Leave your past behind and move forward!
Comparing your relationship with past loves won’t do any good. This can dampen the flow of your relationships, the passion and even dig up insecurities or resentment. Unless the general topic comes up, don’t talk too much about your exes! The first human reaction from your partner could be to compare with them or wondering if you would behave in the same way toward them… There is a difference between talking about who and last time you’ve dated and complaining or mourning your last relationship.
Remember your current partner is not your psychologist, he or she’s not your ex either and you’re also different from what you were when you dated them. What impression will that leaves on your partner if you keep referring to your past relationships or exes other and other?