Yes, it is true that when a person has bad experiences with romance, that the next partner suffers from the way that person is affected. If trust is broken, then it will be difficult to trust again. Only time and experience will prove that the next person is not untrustworthy lke the last one. So, if you are with someone that you know has been badly hurt a little extra care is needed to help the person's heart mend.
Usually the norm with people breaking up is anger, lack of trust, unfaithfulness, etc. It has been my observation that early in a marriage breakup there is a lot of anger, and people often hate each other for a time, and sometimes for many years. Sometimes after many years people settle their differences enough so that they can be civil with each other, and can allow family members to get together, and even visit a little. I know one couple after more than 25 years, they decided it wasn't working anymore, and they mutually decided to part ways without the animosity. He gave her almost everything in the house as he was moving to the Philippines anyway, and couldn't take anything much with him. He got everything he needed once he got to the Philippines, and never missed any of his things he left behind.