This is obsessive thinking disguised as a love song. Lacy keeps saying he needs this person's love, but what he actually describes is being trapped in his own head. The 'you' never appears, never speaks, never loves him back. It's all mind, no relationship.
I can't live without your love / My mind is always in a rush
He stacks survival language with mental chaos. One is about the other person, one is entirely internal. The song wants you to hear those as connected, but they might just be two separate problems happening at once.
Try and keep cool, stuck in my head / Think about you, just can't get away
The effort is all about managing his own brain. 'Keep cool' and 'can't get away' are about regulating himself, not pursuing someone. He's trying to escape his thoughts, not win a person over.
(Mind, mind, mind) / Just can't get away
When the words strip down to just 'mind' on loop, it stops pretending to be about romance. This is what addiction sounds like. The thing he can't escape isn't a person, it's the thinking itself.
Sometimes I love you way too much
He admits the love is excessive while simultaneously calling it essential for survival. That's the tell. If you know it's 'way too much,' you already know it's not actually keeping you alive.
Lacy would probably be surprised to hear this isn't a love song. It's a song about someone who can't stop thinking about someone, which is a completely different problem. The love he claims he needs might not exist at all. What definitely exists is the loop.