Types of frenz

Recently realize that some frenz i hangout with actually got not much common topic. Makes me wonder .. is this still consider friendship ? Makes me really wonder what is called a true friendship ? Here are the types of frenz i think i have :)

1) Long term frenz - seldom contact, but if got problems , i know i can always count on them. Eg. my secondary mates.

2) Hi 'n' Bye frenz - rarely see each others , maybe just a smile if just see on the streets. Just say hi , a smile , or maybe small
chat n exchange updated contacts but will neber call one another. Eg. ex-army campmates , work mates, classmates.

3) Heart 2 Heart Frenz - someone whom u can talk everything n anything. Including deepest thots , problems of the heart , wildest fanatasy :)

4) Fun time frenz - Only spend fun today ... no topic to chat @ all, other then just having fun together.

Just very very sad .... Type 4 ... can i consider them as frenz ? cos we totally got almost no topic to talk other then school n maybe bit of work. Even in class we dun really talk unless we are making fun of some other.

Think there are other types @ all , will continue soon ...

Btw bit bit sad today cos just found out a blogger decided to stop his blogging for the time being .... hope to see him update soon cos found alot of help there :) cheers !