I don’t like the person I start becoming when with my girlfriend

I been seeing this girl for a few months now. Some days she’s super clingy, then others she’s totally ignoring me. Same with the affection. Some days she’s like head over heels in love with me and then others she barely looks at me. I’m not the type of person to talk much, but I have noticed that when she does this it makes me really quiet and angry. Like before I was seeing her I used to joke around, help people, be really friendly. But then when she does this I don’t want to talk to anyone. Not even her. I just want to block everyone out. She’s made me realize I’m attracting the same people in my life. I took some time off of us for myself and I felt like my old self again. But now we’re getting back together and I can tell she’s already pulling this stuff again. All I want is a healthy relationship. I want someone to be able to talk comfortably to and have trust. But with her I feel like I’m walking on eggshells all the time. I don’t know what to do. Any advice would be greatly appreciated