By Hugo Gye PUBLISHED: 03:43 EST, 29 April 2013 | UPDATED: 03:59 EST, 29 April 2013 The ex-girlfriend of one of the Boston bombers has revealed that he tried to turn her against the U.S. and beat her if she wore Western clothing. Nadine Ascencao says that over the course of her relationship with Tamerlan Tsarnaev, he was transformed from a fun-loving student into an Islamic extremist who shunned American life. The 24-year-old lost her virginity to the Chechen immigrant and said she was besotted with him - but now she admits she had a 'lucky escape'. Extremist: Tamerlan Tsarnaev apparently tried to force his ex-girlfriend Nadine Ascencao to convert to Islam
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Nadine Ascencao, 24, dated Tamerlan Tsarnaev for three years
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He tried to make her become a Muslim and wear more modest clothing
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Pair fought after he started going out with future wife Katharine Russell
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Tsarnaev killed with police in shoot-out after Boston Marathon terror attack
Tamerlan said I couldn't be with him unless I became a @placeholder.