I know what to do but it is not easy

You may think i am happily married
this may have been true in the past
but now my heart is suffering
because the love did not last

i used to want to fix the problems
to try to make it work
but now my heart has grown cold
to him acting like a jerk

so now this last weekend
i went to my hometown and saw
my ex who i was perfect with
and he left my heart in awe

we got along so perfect
i feel kind of guilty
nothing physical happened
but my conscience still feels filthy

because at home with my husband
he wants to kiss an make up
but without my ex next to me
there is no spark to fire up

i could go on forever
but here is all i will add
i think my heart is done with my hubby
and now i need my ex so bad