What does it mean when your boyfriend says you are dump?

Answer 1

We don't know if you're trying (not very succesfully) to spell "dumb" (in which case he's probably right), if he literally said "you are dump" (in which case he's the dumb one), or if this is some variant on "I'm dumping you".

If you want to know what someone means, asking them is a far better way of finding out than asking some random strangers.