This is from my own personal experience of coming out, but I believe Freddy is gay and has a crush on Ivan, but he's in denial.
Point 1) If you pay attention, you notice that Freddy is more jittery around Ivan than anyone else, especially in the episode where Ivan comes over for the night.
Point 2) Freddy can turn into a poodle, which is usually associated with femininity.
Point 3) Ivan kissed Freddy in one episode, which was presented as resuscitation.
Point 3) Freddy and Ivan are always fighting over being the leader, which could be foreshadowing that they are destined to do it together.
I have a feeling we will see the two boys get together in a future season, when it comes out.
Also, I'd love to do a voice for the show. If anyone knows anything about doing that, please pm me.