Obsessive thoughts

[Chairlift]

Please can anyone help me with this. I am obsessing about someone and it's really getting annoying. Hours reading through old messages, thinking about what to say and typing out replies in notes before I send them. This is my friend I'm obsessing about.
It's really annoying

Personally when I’ve been obsessive about something or someone the best thing has been really firmly not allowing myself to think about or re-read etc as much as possible to get me out of the habit. I force myself out of the house and doing activities to keep me busy

Thank you for this. Yes I think distraction is definitely a good idea.