Help me understand! Enternal Sunshine of a Spotless Mind

I understand the Love part, but can't Understand the movie.

Been about a week after watching this movie and I still can’t understand how it revolved. I could not re-watch the movie because of boredom(Watching it for first time was interesting though).

See I understand the Love part where Jim Carrey tries hard not to forget Kate(while the doc tries to clean her off his brain). But I can’t get how they meet again(ok that part :she said him to meet him in a place in his dream). But the plots are really confusing. Right now I’m confused which part I was confused at. SHIT!