Angel,
I dealt with old dealers/using buddies in 2 different ways when I got clean.
1-I ignored them calling and refused to check my voice mail, after a month or 2 they stopped calling.
or
2-I told them to **** off & the only reason I associated with them was b/c of dope and I don't do dope anymore so they can go **** themselves...
Option 2 might not be the best thing except for really stubborn people.