In this photo it is clear that this is a very toxic relationship. his face clearly shows that he is scared knowing that shes going to hit him for something he did. abuse is an obvious sign of an unhealthy relationship.
this is also an unhealthy relationship because her partner obviously looks uninterested with her and feels upset around her. Never stay with someone that makes you unhappy.
an unhealthy relationship have many signs that are toxic like neglecting one another, constant arguing, not happy with eachother, and being controlling. this picture shows unhappiness, he seems irritated with what shes doing to him and how touchy she is with him.