Ashlee Simpson and Pete Wentz Last A Whole Year, Get Engaged It was love at first sight for Pete Wentz and Ashlee Simpson. Well, we imagine it was. Each had to do the standard offhand hair flick to adjust the superfluous strands of long bangs stylishly obscuring their vision to confirm it. But yeah, love at first sight followed by months of blissful romps through studded belt stores and romantic evenings painting each other's fingernails black and applying excessive eyeliner. Ashlee and Fall Out Boy guitarist Pete Wentz fell in love and just got engaged. Literally just right now. Two seconds ago. Keep up, people. There's some lovely mocking to be had.