Lena's feelings of inadequacy and insecurity led her to push Kostas away. She was struggling with her artistic identity and felt like she wasn't good enough for him. Her constant need for reassurance and her inability to fully commit to him ultimately drove a wedge between them.
Kostas, who deeply loved and cared for Lena, felt overwhelmed by her emotional baggage. He felt incapable of providing the support and understanding she needed, which left him feeling broken and defeated.
The term "broke" in this context refers to a sense of emotional exhaustion and vulnerability. Kostas was left feeling emotionally damaged and unable to handle the intensity of their relationship. This ultimately led to their separation.
It's important to note that Lena was also deeply affected by the breakup. While she was the one who initiated it, she ultimately realized the pain she had caused Kostas and the damage she had inflicted on herself.