If you saw that you were arguing with your ex in your dream: Do not lose your understanding towards your close circle, You cannot gain anything by resisting change, but you may gain by keeping up with the change. To see that you are arguing with your ex-lover in your dream is interpreted that you still cannot break your ties with this person, that you carry traces of it, that your anger and grudge still continue and you experience troubled moments. It is a harbinger of going through depressive days.