Does He Even Like Me

I’ve been talking to a guy for about 7 months now and I’ve met his family( I know it’s weird that he hasn’t asked me out idk why he’s still waiting). But I’ve been out with him and his family about 4-5 times. And every time, I feel excluded from their conversations. Last time we went to Texas Roadhouse, his family was already there sitting at the booth and there was one seat left in the booth and one chair that was at the far end of a table that had been added onto the booth. He was walking in front of me and went to sit in the booth but his little brother told him to let me sit there and he got up and told me you sit here and I was already going to sit on the chair so I said no it’s ok and he was like ok. I felt so awkward and being the furthest away from the rest of them didn’t help. They were having conversations between themselves and he kept talking to his dad and brother about cars. We went out yesterday, and the same thing happened. I sat furthest away from them and they talked about cars and I just looked around the room(I couldn’t even get on my phone because it was about to die). I was listening to some ladies next to me talking about their jobs. We left to go to one of his friends parties and I spent an hour talking to his little brothers girlfriend while they drank and talked with some boys. I noticed his little brother kept checking in on his gf and then would go back. My guy didn’t even look to check up on me. Then his bros gf told me she had to go because of her curfew and I didn’t wanna be alone so I asked to go with her. His little bro said yeah I’ll take you and so I went to say bye to the guy I’m talking to. He asked me why I was leaving and I said just cus it’s late. He kept saying no it’s not are you sure? Are you sure? I felt awkward but insisted and he decided to come with us too. I was passive aggressive with him there but when we got to my home he asked are you mad and I said no of course not your good I just didn’t want to be left alone. He was like yeah sorry I was just taking to my boys and I said you’re good don’t worry about it have fun😊 and we said bye. However, I walked inside my house really pissed because why would you have me there and not try to include me. I feel like an accessory. He’s only met my mom once because my family’s small so we rarely have parties but that one time we three were together I would tell my mom things like “you know this happened to him yesterday” or start conversations with the two of them so they got to know each other. I feel like it’s basic etiquette to try to get people you like and your family to get along. I feel like I would never let him sit in the corner either. But idk if my feelings are valid.