love notes?

Tyler has started writing me notes - keep in mind that he is only in Pre-school.

The first one was so sweet
"DE MOM HB VLET LV TYLER" (dear mom happy valentines love tyler)

Today during a time out for throwing toys he wrote
"SOR FR THR THE FEAUD" (sorry for throwing the food) - still sweet
and
"NO DO TUCH DR" (no don't touch the door) - not so sweet
and then
"US MAM AUW NNAD" I have no idea what this says. Tyler will not interpret it for me. He says that I will be mad if I know what it says.
Oh, where has the love gone?