How do you get an ex-boyfriend of over a year to fall in love again with the new less stressed you when he loved you more than anything in the past?

Try talking to him,that's the only way to know if he still has feelings for you. You must start slow and show him that you really are less stressed. Forcing someone to fall in love usually backfires because love should come naturally. You can start by going to somewhere you both have a good memory of and see how it goes. Let him know that the ball is in his park and you would love to earn his trust and love back.