am i poisoning the boyfriend?!

[diamondxavenue.livejournal.com]

I recently used paint markers to draw on a pillow for my boyfriend. He's been sleeping with it on his bed for more than two months.

I thought that after the paint dried, any safety hazards it posed would disappear (since the xylene solvent would have dried). But the paint, originally metallic gold, has turned green. Is there anything to be worried about? Are there toxins coming from the paint? Am I causing serious brain damage?!?! Help!!