Who is Suzette from Long Time Coming and what is their importance?

Suzette was waiting at Law's house when he returned from Marnie's, having just found out that David is his son. She was angry at his tardiness and became even angrier when he asked her to leave. Marnie later met Suzette, who told her about the broken date. After Marnie and Law became involved, she heard several references to "Suzette and her clone," meaning Suzette and all the blonds who hung around Law's house and the homes of the other astronauts.