Puzzled by boars behaviour with new bonding with cage divider

[GuineaRanger]

Hey guys. Just in need of bonding advice again. I have checked all the guides etc and I'm puzzled by the behaviour of one of the pigs and am wondering if someone can shed light in it!

I have a recently bereaved female Peanut, her husboar died last week and so just today we've put her side by side with my M/F bonded pair (yeti and simba- their bonding was very dramatic (he did flying tackles at her, there was lots and lots of chasing and fur pulling, and complaining and chattering but now they're extremely well bonded and he pines and cries when she's taken out). Peanut has lived with yeti before, they're sisters (apparently) and lived together for about a year till we got other pigs and paired them off with them over the years. I'm not worried about those 2 getting on.

All 3 pigs are doing the usual nose sniffing, chinning off, rumble strutting, punching, there was very mild chattering from the girls (not from Simba) bum sniffing. Occasional yawning from peanut when facing away from the other 2. Yeti and Simba are chasing each other and humping each other a bit, some punching and chinning off and complaining to each other.

However what's puzzling me is Simba keeps going to the divider, chasing Yeti (his cage mate) away and complaining at peanut (single pig) with high pitched "squealing" constantly, she rumble struts back at him and often it ends with chinning off and a punch from her to him. Is this just him asserting his dominance over her? Or is this potentially him not liking her and telling her to keep away from them? I don't think he has chattered at all from what I have seen.

Here are 3 videos of their reactions so far, Simba is black, yeti is white, peanut is brown:

This was when they first interacted with each other:
- YouTube

Simba is the one doing ALL the complaining squeals:
- YouTube

Simba and peanut having their usual little stand off: peanut yeti Simba bond 3

Thanks

 

[GuineaRanger]

I forgot to say that that are all eating hay at regular intervals within sight of each other near the divider too. I think! I have also seen peanut groom once, but I don't think the other 2 have done so

 

[Piggies&buns]

Behaviours between the bars aren’t really indicative of what will happen if you put them all together - Behaviours between the bars can be entirely territorial. You won’t know until you put them all on neutral territory and see what happens but do be prepared that bonded pair can be unwilling to let another join them.

 

[GuineaRanger]

That's fine as I wasn't asking what will happen when I put them together or whether it's indicative of how they will be etc I know it's unpredictable. What I'm asking is what is the most likely explanation for Simbas whining as it currently is

 

[Piggies&buns]

It can literally be because there is someone new there and right at the edge of his territory - as i mentioned, often these interactions at barriers are territorial behaviours.