its been awhile since i played D&D finally found a group but i feel rusty. i have a few questions in this campaign I created a level 1 half-orc barbarian. when i play with this GM every human elf gnome dwarf hates me like i am kill on sight is this normal?

also he told me barbarians cant use any magical weapons if i pick up one it will break i dont rember reading that in the 4th edition rules. can anyone help?