I need to vent. My fiancées brother drives me up a wall! When I first met my fiancée he didn't mind…

I need to vent. My fiancées brother drives me up a wall! When I first met my fiancée he didn't mind picking me up. My fiancée doesn't have a car because he's the one paying the rent at the apartment both of them live in and he can't afford insurance. But his brother who doesn't work and uses his parents car is on their insurance. So if he needs to go somewhere he has to ask him. And ever since I got pregnant he will tell him no he won't come get me. I've bought him gas a few times and food. But still he acts like I'm this huge inconvenience. I've talked to my fiancée about it and he feels the same way. He has maybe spoken to me twice in the last year I've known my fiancée. And I could be in the same room as both of them and he will ask him to tell me something or ask me something. And I've had to bite my tongue several times. I feel like I can't win here. There lease is up in May and we are moving in together. And I honestly think his brother hates me because I'm taking him away from him.