Jennifer Demontier, Manchester, New Hampshire, a registered cheater in cheatersregistry.com. The registry entry for Jennifer Demontier, Manchester, New Hampshire is as follows: This girl was engaged with 2 kids. She worked at a car dealership with a guy who was also engaged with 2 kids too. She made him believe she had left her boyfriend and convinced him that he should leave his girlfriend. Except she didnt leave her boyfriend and his girlfriend found out about what was going on between them and kicked him out. They claimed to be in love but once he was homeless she said he was the biggest mistake of her life. She was friends with his girlfriend and he was friends with Jens boyfriend. She doesnt care of youre married, engaged, in a relationship or anything. Watch out ladies, shell screw up your relationship too!