Is it normal to feel mixed emotions with my dad and his gf?
A few months ago my dad met this lady, and they clicked right from the get-go. Ever since, things have progressed quite fast, and are now living together. I'm happy for him because he has a girl in his life that isn't flaky. I've met his gf a couple times since they first got together. I do like his gf. There's no denying it. She's nice, gentle, and smart. However, part of me feels like she doesn't like me, or isn't as interested into me. This has since caused me to overthink and feel a mix of negative and positive thoughts when around her. My dad's an extrovert, and I'm an introvert. His gf is also an extrovert. Might not mean anything but I just wonder if that has anything to do with it.
I've also noticed that when we're in the same room, I'm sometimes not part of the conversation. I'll just sit there, relaxing for a good hour before they ask me something, or include me into the discussion. It makes me feel negative because I ask myself if they even want me there. Then there's times I'll be part of the conversation more than usual, and in those cases I feel good.
Now, again I could be overthinking because they know I'm an introvert, so it's possible they're just respecting my wishes without letting me know. I just want to know if it's normal to feel these mix of emotions, and perhaps might need more exposure in order to feel truly comfortable.