Zombie apocalypse due to virus infection. Mc and ml found each other when trying to survive. They fell in love. Then they found mc's best friend, bully and parents plus some other survivors and researchers. They found out mc's blood is immune to the virus. Vaccine was successfully made with his blood hence they are finding ppl to cure. They went to find supplies but due to the zombies mutating into various mutants, the zombies are stronger so they're harder to beat. Mc got bitten so he's transforming to one. The others at the research lab are curing ppl, unfortunately they cured an ungrateful bastard that proceeded to complain and trash the area, including the barriers formed ard the building, then setting it on fire. One of the beautiful ladies wants to save him out of there so she's still in the burning building. Mc is waking up as an infected but eventually wakes up and is conscious again.
THANK YOU
im totally lost with the plot can someone explain please