Can you have a serious relationship with an 8 year age gap?

I’m dating someone 8 years older. He said he was only looking for something serious when we met but he doesn’t seem to take me seriously at all, he seems to objectify me and is hyper-sexual. He says it’s really just with me. Will I be able to find an older guy who is mature? Or will the age gap keep creating this situation?
Can you have a serious relationship with an 8 year age gap?
Post Opinion