I know it was very foolish thing to get involved with but I had know idea about the condom breaking while having sex. Your saying that this was a high risk situation? I think in the future that this is going to be the last time. There are way to many risks for this type of sex and this situation has confirmed that message.
The "total" protection offered by a condom suddenly become void as soon as it fails,And this built in "risk factor" must always be kept in mind by all those relying on this safeguard. The key is, "correct and consistent" use. Especially for an act of anal penetration plenty of water based lubrication is needed to reduce abrasion and friction that might cause a condom to fail.
You had experienced a case of condom failure in a high risk situation of anal bottom, so you should wait for 12/13 weeks and get yourself tested for HIV. Don't rely on the words of your partner but believe your test report only,,, Hope everything would be fine. :-)
A dime sized hole? A "hole" that large would have ended up with a destroyed condom.