When Elena makes Peyton breakfast, they're sitting at the table together. The shot of the table right before they kiss shows 4 pieces of toast on one plate and the other plate is empty. When they stop kissing and the table is shown gain, there are 2 pieces of toast on each plate.
When Peyton gets out of her SUV and is talking to Elena, her phone is a flip-top phone. When she's sitting at the table in her house and Elena texts her, she picks up her phone and hits a key to read her message. In this scene her phone looks like a non-flip smart phone.