Especially as the first two fathers are not in the picture anymore so the 3rd husband is bringing up someone else's 6 DC and then a further 2 have been added to the household 
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The mother is effectively a single parent anyway as the latest DH is away a lot in the military. The oldest 3 are in boarding school though so there is only 5 DC full time at home. This is a middle class family btw not a family of 'benefit scroungers'. The mother states that 'her kids have a decent dad and will all be fine'. AIBU in thinking that it's terrible?