you people
you guys

Meaning you love someone a lot more. Usually only applying to Matt and not Heather

An exclamation of your love for any human being, especially a close friend. In fact can be used to express love for anything.

I love you. If you have said "I like you a lot" more then 100 times to the same person it probably means that you love her/him.

is there any explanation for this

A true opportunity which appears negative but may be easily capitalized based on ingenuity, hard work and a unique perspective.