u/Historical_Orchid563

I F20 am concerned about my partners stress and how he has started to handle it. I have been with my fiance M21 for 2 and half years and havent had many problems but when we do have arguments they get very heated and our voices get raised. Theres been two occassions however where i have been concerned whether i should stay or not. The first occassion was about a year ago when we had an argument caused by stress and he threw a plate at the wall next to the door i just left from. The second was last night when (for context, i have recently sprained my foot and ankle and have been trouble with my period causing me to get very hot and making me unable to open the window so i asked him to open the window) he went to open the window he accidently stepped on his hairdryer he just burst out and smashed the hairdryer on the floor multiple times whilst yelling at it, after yelling for him to stop he stormed out the room and didnt come back for an hour. In terms of stress i am planning the wedding and because he wanted to be involved i asked him questioms and he freaked out and said it was too stressful (i asked him what shade of red he wanyed for the grooms ties). His family hasnt helped mind as we told them two years in advance that we dont want children at the wedding and his sisters have threatened not to come and his mom is stresding that the family is going to fall apart. They have options so theyre stressing over nothing but it seems to have rubbed off on him even though he was the one who suggested no children and i just agreed. Is there any advice on any of this that someone could share with me?