You can attract your guinea pig back by use of its favorite fruits as you try to shake his feed bag. If he does not come out, remove all the food sources from the area. After almost an hour, he will come if you shake his feeding bag.
I have had my Guinea pigs, Bell and Abby, for about two years now and they both still hate me! They are so obsessed with their food though so if you have some food like lettuce or celery (oh and if you didn't know you have to cut the celery into little pieces 'cuz if you leave it whole she could choke on the strands) just lay it out and step away. Don't stand right by the food or she might not come.