Casting spells on people that makes one person love another specific person violates free will. It doesn't matter if it's not for you. Christianity outside of certain protestant groups is really big on free will, so maybe it's lucky that your circle broke.
Here is some advice on alternatives:
A spell that helps the target see what lovable about the person your helping
A spell that inspired meaningful communication and provides wisdom. (For couples with relationship trouble).
A spell that attracts a romantic partner (not a specific person), who would bring joy to your client and who your client would give joy to in return.
#1 doesn't guarantee that the subject of the spell must start a relationship. #2 might cause a well thought out breakup if the couple in question is toxic to eachother, #3 doesn't force anyone to have a relationship, but bringing two compatible peopel together is no joke.
No on your broken circle. The energy is still in the universe, it's probably just in a chaotic and dissonant form. Burn sage, or use your personal power to clear the energy of the room you did your spell in. Meditate and balance your own magic.
Also don't play god and thank jesus for not letting you make a mistake. I'm not a christian, but no one should ever play hypocrite with your faith. (I don't think that's what you did, but you were in danger of this).
Also it's great that you want to encourage love in this world, we don't see enough of it.