The only person who can decide if this needs therapy is your boyfriend. If he cares about you, your feelings alone would be enough to inspire him towards treatment. If he decides it's not needed, he's leaving you with feelings you're not comfortable with. Does he WANT therapy?

Everyone has quirks. What you described with his behaviors would not bother me. I would only want him to change if it was effecting his life. Many people take obsessively good care of their personal items. It would depend on how it effected him in all areas in life vs the comfort he receives via obsessing. It's a tough call. Just because it doesn't bother me, doesn't mean if wouldn't irk the heck out of the next person.