How do I tell someone that I miss being their friend if we avoid each other at all costs? I'm not sure how to start talking..
Perhaps writing it down would help.
Ok another problem I can solve with anime. What your problem is is a typical tsundere relationship like ranma and akane. And I can tell you that the best thing to do is just come out with it. Go up to him and tell him that. Just say "I want to be friends again"
The best way is to start with paying them a compliment to put them at ease and then ask how they've been.Then you could ask them can we start afresh and put the past behind us and start off as friends again ? If that seems to work, saying sorry ( if you feel you need to ) would help heal old wounds and maybe resolve your issues or differences.