I'm not going to comment on what is right or wrong since that is all subjective, but I will give you a word of advice... you said nothing was ever setup through the courts? Big mistake. BIG mistake. The moment she gets pissed at you is the moment that she runs to the courts saying you are a deadbeat. You are automatically guilty until you prove otherwise.
If you truly have custody more than 1/2 the time AND can prove it. File for support... if nothing else to protect you from future anquish.
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