Ashlee Simpson and Pete Wentz Announce Marriage.
Ashlee Simpson and her boyfriend Pete Wentz, bassist for the band Fall Out Boy, are engaged to marry, a spokeswoman for Simpson said on Thursday. The pair, who have been romantically linked since 2006, posted a statement in which they say "we are thrilled to share that we are happily engaged... We consider this to be a very private matter, but we wanted you to hear it straight from us."