I bought the game and every time I log in it rejects and says that my game crashed. What I expected to happen was to log in and play. What happened was that it wouldn't even go to the main menu and say on top of the log in that it crashed.

Incomplete without a crash report from ([minecraft/crash-reports/crash-<DATE>-client.txt|http://hopper.minecraft.net/help/finding-minecraft-data-folder]). Please attach it so that we can diagnose your issue.

Most likely a duplicate of MC-38527

Besides that: Your version of Minecraft is no longer supported. We are currently only accepting bugs found in the official release 1.8 and later.