Is this normal behaviour ??

Everytime my boyfriend and I fight he always wants space . So when I give him space and we say we will come back to talk In an hr or couple of hours he falls asleep . We then never fix anything until the next day and by then I’m pissed off . I then sit there crying and hurt by what’s happened and he’s just asleep ... is it okay to feel upset by this or is it okay ?

My boyfriend tends to shut down anytime we try to talk . He will then just say nothing , or get really mad and walk off and want space . We agreed on his technique of space then we come back and talk . He’s now asleep and this happened quite a lot !