so today I found out that my 2 month old has to wear a harness for 3 months because her joints…

so today I found out that my 2 month old has to wear a harness for 3 months because her joints didn't develop correctly and if they are not corrected in 6 months she will need surgery so I have been crying all day and been very upset... so what does my fiance do leaves to go help his uncle on the truck which I was kind of upset about...but now I'm super pissed because he left at 3 and its 9:20 shouldn't he have idk came home as soon as he was done knowing how upset I was??? or am I over reacting??