Should I be mad

So my boyfriend normally cums fast so I thought I'll do something different. Before we had sex I sucked his penis and he decided he wants to cum I stopped and told him I didn't want him to cum cause I wanted to have sex so we had sex and after 4 strokes he it was over. I told him I didn't want him to cum fast. Idk if I should be mad at him for being selfish. Usually when he cum fast before he cums he tells me and I say ok go head but this time he gave no warning