What does the mom say at the end?

I believe his name is just "Ste." I see no mention of "Steve" on IMDB or Wikipedia. And I hope it's just "Ste" because "Ste" is unique and original.

IMDB:
"A tender love story set during a hot summer on a South-East London housing estate. Jamie, a relatively unpopular lad who bunks off school to avoid football, lives next door to Ste, a more popular athletic lad but who is frequently beaten up by his father and older brother. Such an episode of violence brings Jamie and Ste together: Sandra (Jamie's mum) offers refugee to Ste, who has to 'top-and-tail' with Jamie. Hence, the story tells of their growing attraction for one another, from initial lingering glances to their irrefutable love, which so magnificently illustrated at the end of the film. In deals with the tribulations of coming to terms with their sexuality and of others finding out, in light of Sandra's unwavering loyalty and defence of Jamie and the fear of repercussion should Ste's family find out. The plot is set against sub-texts of Sandra's desire to manage her own pub, and thus escape the estate, and of her new relationship with her hippy boyfriend Tony; and of Leah, the brassy girl next door who has been expelled from school and spends her time listening to Mama Cass records and tripping on a variety of drugs."

WIK:
"Jamie (Glen Berry), a teen who is infatuated with his classmate, Ste (Scott Neal), has to deal with his single mother Sandra (Linda Henry), who is pre-occupied with ambitious plans to run her own pub and with an ever-changing string of lovers, the latest of whom is Tony (Ben Daniels), a neo-hippie. Sandra finds herself at odds with Leah (Tameka Empson), a sassy and rude neighbour girl who has been expelled from school, does several drugs, and constantly listens and sings along to her mother's Cass Elliot records. While Jamie's homosexuality remains concealed, his introvert nature and dislike of football are reason enough for his classmates to bully him at every opportunity.

Ste, who is living together with his drug-dealing brother and abusive, alcoholic father in the flat next door, is one night beaten by his brother so badly that Sandra takes pity and lets him sleep over. In the absence of a third bed, Ste has to make do with sleeping 'top-to-toe' with Jamie. On the second night they share a bed, after a massage and a minor conversation, the boys soon change sleeping arrangements and Jamie kisses Ste for the first time."