FREAKING OUT....!!!!!

he hasnt come online on whats app as yet  
I would have messaged but his gf has a problem with me arghhh...
everyday i see his last seen changing to online and to new last seen again but that didnt happen today  
i m not a stalker umm.. its more over just satisfies me that he is fine and he is in contact with people around which means he isnt isolating himself and is doing good if not very good with situation around...
almost half of the day has passed and his last seen is still yesterdays...
have thought of various reasons...
net pack may be over but with a postpaid phone that really doesnt happen...
his exams are on so he is studying but knowing him he switching off internet for an exam is the last thing i ll believe...
arghh its scaring... being his bestie thou we dont talk now i dont want him to isolate himself...
should i call him?? but what would i say then i called you cause you didnt come online today?? wont that seem wayyy to creepy...
waiting for your last seen to change to online no matter for how long...
hoping_you'll_be_fine