The victim's parents say this has been devastating for the boy, who was just 15 when it all started. They say he's tried to commit suicide three times since the teacher's arrest. Now, he is telling his side of the story.
"She looked at me different," Jimmy Pallais said.
Pallais spoke to ABC News' "20/20" with the permission of his parents -- the only reason we are showing you his face. He is, after all, a child victim of sexual assault.
Prosecutors say the relationship between Pallais and Kathryn Murray began in 2012, when the boy -- newly in Houston from Costa Rica -- was one of her students.
He tells ABC he noticed her extra attention and acted on it.
"I went to her classroom and I walk straight to her and I kiss her. When I stopped kissing her, I walked to my first class and I couldn't do anything. I was nervous," Pallais said.
Understandable. He was just 15 years old. She was 29.
"I went back. I said, 'What you think about what happened?' And she told me, 'I want you to kiss me again,'" Pallais said.
It went far beyond that, prosecutors said at trial. And surveillance video obtained by ABC News reveals Murray got a room at a hotel the night of a middle school dance.
She picked Jimmy up at the dance minutes after his father dropped him off and snuck him in a side door.
"Did anything happen?" ABC News' "20/20" co-anchor David Muir asked Pallais.
"Yes," Pallais said.
"In the hotel?" Muir asked.
"Yes," the teen replied.
It was one of at least four times the teacher and teenage student had sex: twice in her classroom and once at his own home while his parents were out.
It didn't even stop after Murray was arrested. But his parents told us after Murray's sentence, they hope it's finally over now.
"Being a teacher is somebody that we have to trust. We did trust Kathryn Murray," Pallais' mother said. "I'm really hoping she won't ever come back near our son."
Pallais' interview was conducted with ABC News' "20/20," which aired the segment Friday night.
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