You probably missed a few because many peeps (including me) has used the guide and Gil kissed Walter at the end. Maybe you failed some QTE like the cooking one and beach training part?
I probably missed a map option somewhere because I had help for the quick time events LOL did love my characters cooking and the beach was a Cakewalk LOL but I have no idea where I was supposed to go to the grocery store exactly to hand him the shopping cart
