I had an encounter last week that has scared me a lot. I visited one of my relatives who is HIV . She was cooking food for us. While preparing the food she cut the index finger of her right hand with a knife and started bleeding. She sucked the blood with her mouth and continued preparing the food.

She was toasting a bread sandwhich in a frying pan and she used her right hand many times to flip the Sandwhich. She then put it on a plate and offered me. I did not think much of it and ate the Sandwhiches (about 4 in all).

Earlier that day I had peeled off some of the skin from my lips with my teeth(I think it also bled a little) and they were hurting.
I am worried because there is a good probability that fresh blood could have come in contact with the Sanwhich and I ate it almost immediately afterwards. And then again, the skin on my lips was hurting.

Please help me with this scenario and whether I should test for this and pardon me if I seem to be rude.