This summary is not the rule. The rule text controls.
If someone offers to pay for another person's medical bills, hospital costs, funeral expenses, or property damage after an accident, that offer can't be used in court as proof that they caused the accident. This applies whether they already paid the bills, promised to pay them, or simply offered to help.
The idea behind this rule is to encourage people to help each other after accidents without fear that their kindness will be used against them later. If someone pays for another person's ambulance ride or covers repair costs on a damaged car, that action alone doesn't mean they are admitting fault. A jury or judge cannot treat this kind of help as evidence that the person was responsible for what happened.
This rule matters because it lets people do the right thing after an accident, like covering emergency costs, without worrying it will hurt them in a lawsuit later. Someone can still be found liable based on other evidence, but the fact that they offered or paid for expenses cannot be that evidence.