<human>: I realise the title makes me sound like a massive arsewipe, so I'll explain

My boyfriend is a race driver - not like F1 or IndyCar level, but if you're into the US/UK motorsport scene you'd probably recognise him. Naturally, he spends a lot of time training/racing and stuff and I understand that his race career comes before our relationship for him.

He's just had a very successful weekend with back to back wins, however, at the same time, some ultrasound results came back and I've not only been told that I have a large lump/possible cyst on my ovaries and uterus, but that I may also have endometriosis. I've spent a lot of the past three months in serious pain, so I felt like I should tell him about these results (ovarian and uterine cancer runs in my family, so this is a major concern). 

After I told him, my boyfriend told me that I was being 'unreasonable' and 'pathetic' for crying in our hotel room and refusing to go down to a team dinner - yes, this was selfish I'll admit it, but I really needed to be alone - and then he decided to shout at me for ruining his weekend with this news. This carried on for most of the time we were at the race meet; I would get emotional for 'no reason', he'd yell, I'd apologise later for 'being a moody bitch' (his words not mine) and so on until on the last day he decided to tell me that he didn't want me to come along to any more race weekends.

I really don't know if I'm being too demanding or attention seeking about all this. His next race isn't for about 3 weeks, and I'm not going to be in the country for it so being there isn't an issue, but I'm at a loss for how to deal with this news, and also respect his career. I don't want to be the demanding girlfriend that forces someone to throw their life away, but I really really need support right now, and I'm just not getting it.

Can you condense the text into three sentences or less?
<bot>: boyfriend is a race driver, I (might) have a tumor, he doesn't seem to care and thinks I'm just out to shit on his success and has banned me from going to any of his race weekends.