WHY DOES THIS HAVE TO HAPPEN!

Brianna • Just a girl trying to get by
i love my boyfriend with all my heart but we just got done having sex (tmi).. and while during sex he kept telling me he was about to cum and i was like no no don't cause you know i wanted him to not stop, then he ends up cumming, like not even 15 mins in. i absolutely hate when that happens; i guess i should be thankful at least alittle cause he did go down on me after a long time. i mean should i be thankful? like he never goes down on me and when i ask him to he says he will then just subsides it, like i never even asked. i came once and that was when he was down on me like 15 minute sex isn't enough for me 😥 should i be mad or just upset ?