I would be rapidly reaching the point where I'd drag my man to a motel room (get your mind out of the gutter Star) where I could pin him down about this over the top "obligation" he has with Buck. The motel room is so you can talk/yell in private.
Because honestly, if Buck were female, all this junk and Tony's reaction to it would make sense. But Buck is both male and Tony's brother and Tony should have his foot up the guy's rear, not his ego inflated. Something is seriously wrong with this dynamic between the two of them. Tony has raised difficult children for pete's sake, it's not like he hasn't been around the block. And while I know usually dad's are slow to catch on.......still. And knowing that Buck has pulled this routine with the other family members to the point it got him tossed out...........should make Tony wary, not protective. Something is not right here. I still say Buck has something he's holding over Tony's head. Could be something from way back many years ago. But I bet my bottom dollar on it. That or Buck has always easily manipulated Tony like a bow on a fiddle.........which I have trouble believing or Tony would've been the first family member Buck showed up at, not the last.
I'm venturing to assume that his holiday "visit" was scouting the territory. Buck knew, either with manipulation or that something he has on Tony, that Tony wasn't going to be an issue. Janet has always been the issue. So his holiday stay was a scouting trip. A way to size up his opposition, to figure out the one holding the power in the relationship. Due to Janet's illnesses ect, he figures the one holding the power is Tony. So to him, it's open season. Having grown up with Tony, he knows which buttons to push.
So IF Janet could get some time alone with Tony and actually talk to him about this unnatural obligation deal he has going on concerning Buck.......and if he would tell her his real reason for his behavior, she might be able to severe that link. Katie had something like this with husband. It was the whole not seeing her very much during her childhood (she thought she could use the CS too but that one was nipped in the bud). The moment she played her card I saw immediately where she was going with it, husband of course flopped right into her hands. It took some talking and reasoning with the man.....but eventually he saw what she was doing and it royally peeved him off to the point she was never able to play a card like that again. The "thing" that is held over the victims head doesn't have to be major, it just has to have the desired effect on the victim. So while you or I might here it and think wth seriously?? they do take it seriously. Know what I mean??
But see, this is why Buck won't leave you alone with Tony, Janet. If you two become a united front against him, he's outta there, and he knows it. So he keeps the two of you apart, strokes Tony's ego, feeds Tony lord knows what garbage to keep him ticked at you (if he's ticked off, he's certainly not going to want to talk), and keeps doing things to rile you up so that it backs up whatever the heck he's been feeding Tony in private. Once your gone, Janet, he's home free and he knows it.
I'd do the switch a roo thing with the food. Maybe you can make it out to be a practical joke on Buck, just having a little fun, ya know. Pick something Tony really likes that you cook to do the switch... I would soooooooooooooo do this one. lol Seriously I would.
The peeing in a cup is another way to annoy you dear. That and he's too lazy to go to the bathroom. It would've been the receipt AND the water bill I'd have shown Tony. Why on earth would your water bill be in HIS room? And wth is the man doing buying expensive jewelry when he's supposed to be saving for a place to live? Oh, I'd not blow up about it. I'd simply show them to Tony and walk away, not give him the opportunity to defend Buck because I would refuse to listen. Although if Tony asked why you were in Bucks room, I'd answer loud enough for Buck to hear that it is YOUR house and if he wants privacy then he's in the wrong place.