how do you say i hate it when you ignore my in spanish?

Answer 1

I assume that your "my" meant "me".

Lo odio cuando no me haces caso.
or
Lo odio cuando me ignoras.

The translation of "Odio que me ignoras" is fine as well, but there are different (and not necessarily subtle) connotations between the "lo odio cuando" and the "odio que".

The translation I have given you refers to hating those times when the person ignores you, implying that it is an occasional occurrence. The "odio que me ignoras" translates to "I hate that you ignore me," which implies a more habitual action, i.e. that the person always ignores you.

Thus, it's your choice as to the message you wish to convey and the frequency with which the person in question ignores you.
...

Answer 2

Odio cuando me ignoras.

Answer 3

Odio que me ignores

Answer 4

Odio cuando me ignoras