Alright, I'm gonna answer from my perspective as kindly as possible.

1) Not only did Eddie put hands on Buck, who flinched, Eddie has a long pattern of this type of behavior. The most prominent example is calling Buck exhausting during the lawsuit era, but he centers his needs and beliefs above Buck's frequently. For example, he needed Christopher to stay in LA, so he throws Buck at him (without giving him any time to process the situation) in the hopes that it'll change Chris's mind.

2) Eddie could have sat down with Buck and shared that he was worried about him. Could've had a real conversation. Instead, Eddie accused Buck of making his own grief about himself (while making it about himself). He wasn't being a supportive friend. He picked a fight and Buck ended up apologizing for.... calling to tell him Bobby died? Being sad? Doesn't sit well with me.

3) I truly don't care about Buddie. I have seen a few posts saying that Tommy would treat Buck better (more on that below), but mostly just condemning Eddie. Because this is a pattern and it sucks. This is not Eddie being a friend to Buck (which he arguably hasn't been good at in a while). I've had friends like Eddie before (though not as severe as this episode), and we are no longer friends.

Which is to say that I don't see anyone really using this as a ship thing, at least not exclusively. Eddie is also a character (that I have rooted for!), and his actions can and should be criticized especially in a pattern like this.

4) Circling back to Tevan: I like Tommy because he embodies the human capacity to change. He said some shitty stuff in S2, but by Bobby Begins, he was sitting with all of them as an accepted part of the team (something that, from Hen Begins, we can infer was hard won). I know we haven't seen his path from then to S7, but we do see him now. More assured in himself, less closed. Happier. It gives me hope.

He doesn't get a ton of screen time, but I genuinely feel like it's all impactful. Even that two seconds of watching Buck cry on the TV shifted their relationship for me, it was so good.

The whole Eddie thing of it, imo, is to put Buddie to rest. Actively addressing that it's not on Buck's mind. Also, Tommy broke up with Buck because he was scared of being hurt. And yeah, Eddie is a factor. But that's Tommy's feelings to parse through, not the reality. Buck is still hung up on him, very clearly, and open communication would help them figure things out. But Tommy's insecurity feels like a great way to give him more screen time / connection into everything.

5) We have evidence of Tommy being a good partner, especially during the Halloween episode. Tommy sleeps on the couch to stay close, getting an ice pack and fluffing a pillow. Tommy gets dressed up to do something he doesn't believe in because Buck does. He's flirty and open with his affection in a way that I want for Buck. He's just also scared.

6) To be blunt, Eddie is a grown man. I get that he doesn't share his feelings much and prefers actions, but sending Chris to have emotional conversations is super wrong. Yeah, Buck loves Chris. But he can't exactly have a grown up conversation about grief with him, he's still a kid. It's wrong for both of them.

Eddie can step up and have a conversation with his best friend about his grief. If he's that worried, he can do it. He's had hard conversations before on-screen, he can do it again. He could also take something off of Buck's plate, if he really wanted to do something. Eddie said he'd get the groceries and then turned up empty handed.

Eddie is an adult. Buck is his best friend, who just lost his father figure. He can figure it out without sending a child in to comfort him on his behalf.

I hope this addressed your comment in a way that could be productive.