"I freaking love you" is an informal and emphatic way of expressing strong affection and love for someone. The addition of the word "freaking" serves to intensify the emotion behind the statement. In this context, "freaking" is a colloquial term used to add emphasis or even a bit of surprise or excitement to the expression.
Using "freaking" in this way can be seen as an attempt to convey just how deeply the person loves the other and may indicate a sense of overwhelming emotion or enthusiasm. It's a way of saying "I really, really love you" or "I love you a lot."
It's worth noting that the use of "freaking" is informal and may not be suitable for all situations or relationships, especially in formal or professional settings. However, between close friends, romantic partners, or people who are comfortable using casual language with each other, it can be a playful and affectionate way to express their feelings.