I also was very down for at least a year after I quit drinking and I didn't seem to know how to behave w/o the alcohol so I totally isolated myself. Turns out I really prefer to be alone, I do see people occassionally but I'm happiest alone. Yesterday my daughter, her husband, and son came over along with a friend of mine for dinner--they all stayed only 1.5 hours and I was glad when they left -I love them all very much but having people around just seems to cause me stress.
If you can't talk to your friend on the phone and yell try writing what you want to say, you don't have to every send it but I find just writing out the words gets it out of me.