If a person is thinking about going back to his ex-boyfriend or ex-girlfriend, certain things must be considered. If the person is already in another relationship, then the person should be upfront about their feelings.
However, other things should be considered as well. There is always a reason why the person broke up with their ex and those factors should be considered. If the ex was abusive, cheating or has other problems, then the ex probably hasn’t changed and the pain and suffering that the person encountered earlier.
Then the person should stay away. As long as the person isn’t going back to his or her ex for money, but because of love, then it would not go against any moral values.