She regretted the explanation immediately, but that was because she always regretted everything. And then, after the regret had flared and burned out, she didn't care. He should know, she thought. She wanted him to know. She felt something for somebody, and she'd told him.
The quote reflects the inner turmoil of a character who often feels regret after sharing her thoughts or feelings. Despite her immediate remorse, she ultimately decides that her feelings are valid and wants the other person to be aware of them. This illustrates her struggle with vulnerability and the fear of judgment, yet she pushes through these emotions to express herself.
This moment captures a significant theme in relationships, where the fear of regret can sometimes overshadow the desire for connection. The character's decision to be open about her feelings emphasizes the importance of honesty and the complexity of human emotions, highlighting the balance between vulnerability and self-protection.