Complex sentence: Tara understands why Willow kept some magical supplies and is proud that she didn't fall for the temptation of using magic even in a desperate situation, but makes it clear that Willow has to make it without the safety net from now on.
Split into simpler sentences: Tara understands why Willow kept some magical supplies and is proud that she didn't fall for the temptation of using magic even in a desperate situation. She makes it clear that Willow has to cope without the safety net from now on.