Hayley Westoby, 25, ballooned to 18st 7lb in her first year of studies thanks to student staples of booze and junk food .
But after she claims an ex embarrassed her, the stunning marketing manager shed 10st 2lb by ditching her vices and swapping them for gruelling gym sessions.
Hayley said: "Before my weight had been mentioned, I hadn't realised how much weight I'd put on.
"It had been a gradual thing since starting university, where I gained the 'Fresher 10' and then some thanks to my student diet of junk food and booze.
"But after the shock of realising how much weight I had put on had worn off, it made me look at my party lifestyle and I realised I had actually let myself go.
Now I've lost 65kgs (10st) completely naturally and am so proud of what I've achieved. I'll never be embarrassed by my body again."
Hayley is helped by her new partner Nathan, 35, who encourages her to stick to her goals.