The boss always asks me to buy things, but he never returns them. He went too far. He asked my colleagues to do things and asked me to pay. He said he would pay me back in the afternoon. A little now.

The boss always asks you to buy things, then doesn't reimburse you, doesn't pay you back, and often asks you to pay. This shows that your boss is selfish and likes to be greedy and cheap. This kind of boss will not be a man, so you should not expect to stay in his company, because he is a stingy person himself, and you will not have a good development if you stay in his company. If he doesn't pay you back, send a text message.