Here's how you can express this in Chinese, depending on the context:
1. If someone says "I love you," and you want to say "I love you too":
* 我也爱你 (wǒ yě ài nǐ) - This is the most direct translation, meaning "I love you too."
* 我爱你 (wǒ ài nǐ) - You can simply repeat "I love you" without the "too".
2. If someone is expressing their love for something, and you want to say you love it too:
* 我也很喜欢 (wǒ yě hěn xǐhuan) - This means "I like it very much too."
* 我也很喜欢... (wǒ yě hěn xǐhuan...) - You can follow this with the thing you love. For example: "我也很喜欢猫 (wǒ yě hěn xǐhuan māo)" - "I love cats too."
3. If you want to express mutual love in a more general sense:
* 我们彼此相爱 (wǒmen bǐcǐ xiāng'ài) - This means "We love each other."
* 我们互相爱着 (wǒmen hùxiāng àizhe) - This means "We love each other."
Remember, the best way to express this depends on the specific situation and the tone you want to convey.