The Proclaimers - I'm Lucky lyrics

I'm lucky, I know I'm lucky You brought me to the girl And I'm grateful for the way you made it happen You put such beauty in this world But I'm ashamed, I'm ashamed of the way I feel sometimes When the blood rushes to my head it burns When I think of the boys that she knew before I feel my happiness turn I know it's pointless, nothing I can change I just make myself feel worse But through all my jealousy one fact remains I can't accept that someone got there first I don't care, I don't care if she hates every one of them I don't care if they hate her back the same ‘Cause I love her so much that it's making me ache And I'm too weak to bear this pain I'm too weak to bear this pain