Boyfriend keeps finishing fast

My boyfriend keeps finishing fast and I love when we have sex it feels great but he gets to finish and i don’t...everything ends so fast and I just NEVER get to fully enjoy myself anymore it feels like a 45 second rollercoaster at the beginning of our relationship we would have so much sex and each round would at least be 30 minutes but now it ends in 5 and I can’t orgasm in 5 minutes should I tell him something I don’t want to hurt his ego because i love him but damn a girl wants to enjoy having sex again too :(