My 2 cents....
Yes, Tim was bullying Halle. If you notice Halle is the only girl that is sassy towards Tim. I think he needs full control especially over women. This is where the tension will come in at. The girls as they get bigger are going to ask questions like what is daddy doing? Why can't he help around the house. I think Ella will always chose Tim. I think along time ago she made up here mind no matter what, I dont want to raise the kids alone. I think as the boys get bigger they will be buddy buddy with their father. I also notice Hosanna seem to be enjoying her daddy complimenting her and bulling Halle. I do think Hosanna is deeply jealous of Halle. For instant today's video, Ella checked their hair lengths, she speaks on long hair like its gold or something. Ella is projecting her insecurities on her girls. Also when Tim complimented Hosanna and Rue, notice Ella put her head down, because deep inside she does not believe they have pretty hair. To sum things up when the kids become teenagers, the house is going to be DYNAMITE.