have to explain why I want to break up to a 41 YEAR OLD PERSON!!
LOL! Watch out for the 'have to's! Don't should on yourself.
In truth, you don't have to explain ANYTHING. You can be done with NO conversation if you wish. Certainly, be clear that your intent can be to express yourself and NOT to get him to understand. We can't do that for them, especially when they don't WANT to understand.
You do what you need to do for you. Trust the universe that he will be taken care of.
He's an adult. He can take care of himself physically and emotionally. Give him the respect to do so.
Hugs and good luck!
peace