How do I love again?

I gave you the best of me, imperfectly and selflessly 
and now on receiving the burden of blame
I feel my self hardening, growing walls
heeding caution on loving ever again
I pray, how do I stop myself
from growing cynical of the magic of love
how do I stop myself 
from holding back my giving 
how do I prevent my openness from scrunching
my genuity from cowering small to not be used against me again?
How do I ever feel safe again to show up with my scars and 
offer the magnificence of my love ever again?