Christmas with you

Seren is engaged to be married to Brian at Christmas. She's not sure she is totally happy with her small town life, but what else is there? When her childhood best friend Ash appears back in her life, Seren realises how happy Ash makes her. Ash is a lesbian and Seren starts to question her own feelings. But Seren is straight, isn't she? She's getting married at Christmas to Brian, isn't she?