The big O help

So I got a problem. I can orgasm with penetration alone if I’m using a dildo within 5 minutes. My very first time trying a dildo was very recently. I’ve used it 4 times and I have been with my boyfriend for almost 2 years. I will squirt using the dildo but it’s like I have to remove the dildo in order for it to come out. It won’t come out if the dildo is still in me. When I have penetrative sex with my boyfriend, I feel the urge to orgasm like I cry and I get a very lovely sensation but then I tense up as if my stomach muscles and vaginal muscles are trying to push him out of me. I get that feeling like I’m going to cum and it feels amazing but nothing ever comes out. Is my coochie broken? 😩😭Bc it’s the not being able to orgasm for me🤦🏽‍♀️vibrators and rubbing the bean doesn’t help it come out either.