Actually, I think they are both abusive and caused hurt (physical or emotional) to each other. Hopefully, this might be some form of clash that can be picked up, so that we will learn what to look for in other relationships.
Some notes about their compatibility are in this thread:
https://fivearts.info/fivearts/index.php?topic=21243.0Amber is look beautiful without a doubt, but she's not as perfect for Johnny as Vanessa was.
Kwei (the husband in the Amber bazi) receives the Death scene (qi phase) in Shen (her marriage palace). The couple may have some problems in their life together. An official marriage for this couple was not desirable.
Shen in the Amber chart is a void for Johnny. For a life together, this is not very good - the couple has little chance of maintaining a relationship for a long run. Although their marriage patterns are perfect for each other, in addition, the stars located in the Palaces of Marriage are Red Phoenixes for each other - these people are constantly atracted to each other.
Johnny and Amber were in love, but let's not forget about the 25-year age difference. Unfortunately, it was difficult for this couple to stay together for a long time.