When someone shows you who they are, believe them!
Never let someone lie to you. If they say this is who they are, never try to change them!
They will be unhappy and you will be miserable.
If your a jolly person and they are only half of the time , leave em!
If they need you to pick up their happy then you will end up depressed.
If they need you point, blank, period to be a good person, remove them.
These people will have to change on their own and after the 6th and 7th failed relationship. You might have to consider the person you love being the cause and effect of every failed relationship!