What is up with her?

Ok, this girl who is kinda like my girlfriend. (We were just friends but then got closer). We already do all the things bf and gf's do, you know. But lately, she still calls me n everything, but like today, it seems like shes trying to make me mad or jealous or something for no reason. She told me her 'homeboy' went n picked her up to take her to work today, when she always has her own ride. Then she tells me about her other 'friend' that he came to see her and she was all "..and then i went n gave him a hug.." and she said her co-workers said that guy was all cute n everything. then she tells me she talked to her other couple of friends but didnt bother to call me last night. Idk if she got the hint that i was upset about all that, but what should i do incase she didnt get it? Im thinking i should just ignore her calls for a day or two on purpose.