I found out, and this only happens for me for some people, for some reason when you throw a splash potion and then throw another one before the particles of the first one disappears your game will just freeze without an error log and will just stop responding.
"[00:48:44 ERROR]: Game ended with bad state (exit code -805306369)"
If needed i can make a video showing how it happens.
Along with 1.7.5 i had been crashing too many times for various reasons, and it's just unplayable.
Recently formatted system and ever since (probably ever since 1.7.4)
the game just crashes all the time. for all sort of reasons.
This is a technical support issue, please follow the instructions of this guide: Exit Code: -805306369. If all that won't help, please use the Mojang Support Center.