If he refuses to pay, there really is no other way to compel him to pay other than to sue him. However, as you have surmised, it might very well be a waste of time. Not only will you need to pay filing fees and spend a few delightful hours at the courthouse, but then you will need to collect. If he is unable to pay a portion of an electric bill, he might be judgment proof. I would suggest you take some time to consider the tableaux of your relationship, since it obviously has some importance to you, and determine whether this amount of money is worth terminating it.
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