How to tell him how you're REALLY feeling?

My boyfriend and I get in fights, and he asks me why I'm mad or whatever... After I write it out, I always come to the conclusion "I don't think you miss me", "I don't feel like you appreciate me", "I don't feel like you love me"... How do you tell your partner that? Because if that's true, then there's nothing I can do. There's no "working on this together" there. 
I really don't think my boyfriend loves me the way a boyfriend should.
"What is the difference between 'I like you' and 'I love you'?
"Beautifully answered by Buddha: 'When you like a flower, you just pluck it. But when you love a flower, you water it daily.' 
One who understands this, understands life..."
Sometimes, I feel like I'm the only one trying 😔