Heather Rae Young is more in love than ever on the one-year anniversary of getting engaged to her fiance, Tarek El Moussa.Young took to Instagram on Sunday to share a heartfelt message alongside a slideshow post featuring photos of El Moussa's romantic seaside proposal.«One year ago today I made the best decision of my life by saying yes to spending forever with the most special man,» Young wrote in her swooning post.Young continued, «I remember when he proposed… in that moment everything melted