While shopping my 3 year old kept standing up in the trolley. I asked him to sit down and he refused so I gave him the option of sitting in the trolley or getting out and walking. At this DP walked off. I stuck it out and got DS out of the trolley where he started a tantrum. I asked dp to come back which he did but in a mood and just picked DS up to carry him. I've told him I felt unsupported (he always seems to give in to tantrums) and he's said I'm far too strict.