**Dwelling on the past**

this is what a lot of people do. They dwell on past emotions and past experiences, And i understand why  some people do.. If it was a bad car accident or a death of someone that was close  etc.. Sometimes people dwell on past relationships, Which can really mess up someones life if that  relationship had negativity in it. sometimes old fights and old fears lead to new fights and old fears/new fears.. in a new relationship.  It's hard but it's best to try not to let those feelings overpower anything. If you love someone love them and have 100% faith in them. Don't let the past get in the way of your future.