Woman, 19, reveals how she caught her fiance cheating

'[This was] around three months into our engagement, where up until this point, he was very adamant on getting married and having a baby.' Arellano said they already had 'some very brief conversations' about wedding venues, and she had picked out a dress that she 'fell in love with,' but their planning came to a halt after the prenup conversations. Frequent arguments led to her realization that she couldn't 'change him,' and they split soon after.