I asked H to leave; regret-now what?

[Luluber1]

Dear old "dad" (FIL) told H that I came over looking for H to sign "court papers" which angered H-(he sent me an email asking what court papers did I take over to his dad's). Then H accused me of telling his co-workers about our separation. I told him his dad was mistaken (he looked like he had a few beers in him) and I reiterated I had gone over there to talk, face to face, about the bill and I didn't mention court, separation, or any other matters-I was only there for 60 seconds or so. H did not write back.
I ended up paying his bill-I hope I never get into that situation again; lessoned learned. If they don't have the credit that's their own challenge to overcome.
There is no reason to send H emails or telephone him again. I guess I have to approach this as "water under the bridge" and not let it consume me with anger. I've already given my apology about asking him to leave, twice, through email and voicemail and that's all I can do-can't make him accept the apology. Going "dark" will be easier now (I hope) and H has to walk his own path, whatever that might be.