he was talking about how friendship and how sometimes people take different paths and often times grow apart from each other . they were both in the hood doing wrong then both went to jail and his friend decided he didnt want to be apart of that and took a different route to make his life better but the past caught up with him and it ended his life. Tupac is looking back at the past and now and he saying even though he was upset his friend and him went seperate ways but he understands now and he isnt holding any grudges against him for it. he respect his decision.