How do i show my fiance just how much i love him!!?

me and my fiance are sooo in love, we both use to get jelouse of eachothers past, we'v just learnt to not let it bother us. but i always am negative and take stuff he says the wrong way, turing a joke into a fight. its destroying our haps and im scared of pushing him away. i want to prove to him that hes choicen the right girl (me) but i need tips on just making him love me moreee than just getting him mad.