Manchester: The student claims his confidence had been "shattered" by Caroline Berriman, who was spared jail despite admitting sex with the 15-year-old.
The relationship started when Berriman was working as a classroom teaching assistant at Abraham Moss Community School in Crumpsall, Manchester.
The boy claims the pair did not have sex until five months into their relationship but from then on it was regular and "always unprotected".
Today the boy was interviewed by This Morning's hosts Holly Willoughby and Phillip Schofield who referred to him as "Jack" as he cannot be named for legal reasons.
Jack, now 17, said: "I think it's disgusting and I want people to understand that even though they might not have seen what happened, I wouldn't wish it on anybody."
Jack said the pair regularly texted and called each other and he spent a lot of time at Berriman's home.
He said: "I just started by just going there talking, watching TV, chilling out. Then I started going four or five days a week."
Asked if had a 'crush' on the teaching assistant at first, he said: "At the time, yeah. She made me feel like I was special."
Speaking about the first time they became intimate, Jack said: "She put her arm around me and she kissed me and I kissed her back and things led on to sexual stuff."
He eventually confided in his mother, who told him he had to end the relationship.
He said: "Mum was mortified. She didn't know what to say. She sat me down and said you've just got to end it.
"After my mum said that I felt like I couldn't deal with it. I didn't want to be selfish and put it on them (family)."
Describing how the relationship has affected his life, Jack said: "I can't look at a girl. I can't stay in the same room as a woman unless they are older, like 40, 50.
"My confidence is broken, I've got no confidence no more. I used to be confident and have girlfriends and that's just shattered."
Giving advice to others, he continued: "No mater how scared and how fragile you are you should come forward and talk to people. That's the only way it is going to help."
Berriman, now 30, was sentenced last week, but avoided being sent straight to prison having admitted the offences.
She pleaded guilty to two counts of sexual activity with a child and a further charge of sexual activity with a child by a person in a position of trust.
Berriman, of Chadderton, Oldham, was handed a two-year sentence, suspended for two years at Minshull Street Crown Court, having pleaded guilty to all three charges at an earlier hearing.
She faces 250 hours of unpaid community work - and was ordered to pay a £100 victim surcharge.
Berriman must also obey a restraining order prohibiting her from contacting or seeing the victim.