relationship advice (helpmeplease)

ok so a guy dm me on tiktok, he wanted us to be moots, i said yes. but he asked us to be friends on discord too, i said yes too. we've only been chatting for about a week, but he confess his love for me??? even though we've only known for a week. I rejected him, but from yesterday he seems to conclude that we are dating. he started calling me babe, honey, etc. he is also 4 years older than me. i feel very uncomfortable, i want to ghost him but isn't that very bad? he started updating me about his daily life, I felt bad about ghosting him. what should i do?