AIO for not wanting to give my boyfriend my car

My bf (30M) has been paying my bills (26F) for the past year and a half. In 2024 (me being 24 and him 28 at the time) had broke up and I started working at the strip club after being together for 4 years. During this time apart I was making anywhere from $5,000-$10,000 a month. I was no contact and had him blocked on everything. He randomly showed up to my house of day in late 2024 and we reconciled. I told him I was working at the club and he has the idea/decided to invest in a system for me to do casino sweepstakes. The payout was supposed to be in about 4-6 months and be 10,000 for every month. During this time he agreed to pay my bills. That’s including $740 for my car payment, $450 for insurance, and probably like $150-$300 for random expenses like food,etc. I waited eight months for my casino payout just for them to ban my account (around august 2025). PRIOR to this ordeal, I had caught him messaging another girl on instagram and he agreed to my 10,000 of credit card debt to “show me he’s investing in the relationship”. When the sweepstakes didn’t hit he felt like all his money had been wasted and we started arguing about money a lot. He started to better with his business and stopped telling me stuff about money. Until recently, I have to move out of my home unexpectedly and he’s not ready to take on more financial responsibilities to take care of the both of us (which is fine and i’ve been extremely vocal about it). But now he’s like we HAVE to get married this month so he can get his papers and gain more financial stability and I HAVE to give him my car because he’s the bread winner and i “don’t do anything for this relationship”. So we got in this BIG argument about this. He’s upset that it hasn’t “came out of me” to give him my car because he doesn’t have one and he’s the one paying for it, and making money for the both of us. I told him i’m not opposed to it but he’s not going about it the right way and my warranty covers it until 100,000 miles and it’s about to hit 80,000. With his driving he’ll take it to 100,000 in a month. Am I the asshole for wanting to say no?