For me TJ was the 2nd ML since he was introduce after Jo but I’m not sure. And let’s be honest Jo will be endgame, it’s the most realistic way to pursue the storyline. Like you need someone new to move on from the past. If it wasn’t the objective what was the reason to set the story like that. Even thought author didn’t confirm anything I think unconsciously they’ll make it this way .
It can’t be help but I’m still rooting for TJ
Like you said, Jo could be there to wake them the F up. Personally I ship him with TJ but I don’t actually mind whoever he ends up with as long as it makes sense with the flow of the story. Like right now for example, I can’t imagine him choosing Jo over TJ. Would make zero sense. The author would have to get us there, which there is plenty of time to do since the season barely started and I heard there will be another one. I actually enjoy this type of love triangle more because I get engaged into the story. When the ML is too obvious and they aren’t my cup of tea, I usually just quit the whole thing because that matters more to me than the story.
Honestly 100% of the time I root for the second lead. I always get second lead syndrome. (Love or Hate- Taku. Yours to Claim- Cain. Hate Mate- Jun ....etc) Honestly I could see Ian ending up with either. Jo is someone who can help Ian. I could see him healing and moving on from his past with Jo. (I personally don't like Joseph's design) But Jo is a very good candidate and I wouldn't mind them ending up together. TJ has me feeling conflicted. (I love how TJ looks) he needs a lot of healing and therapy!!!! Ian and TJ are super co dependant. TJ really cares for Ian and you can tell just how much he loves him. Would he be the best option for Ian? No. But if they ended up together it would also be a win. Honestly either could end up with Ian and I would still rate it high. (My solution let them be all in a relationship)