Derek56767's personal soundboard or something screw titlesI am regretful about you.
I am apologetic for you. I know how challenging this situation can be. I kindly request, accept my genuine regrets.
I am regretful for you. I know what difficult this situation can be. I urge you, accept my heartfelt apologies. I deeply regret the inconvenience caused. I'm expecting that you will excuse me.