Is it normal i said "i love you" way too soon?

Basically, there's this guy that I'm talking to long distance through text. We've only been talking for about a month now, but he said that he loved me within the first week of talking.

As crazy as that sounds, it didn't feel super soon in the moment. I didn't say it back immediately and sort of just avoiding the whole "love" word itself, until he kept saying it over and over. He never asked me to say it back, but he said it repeatedly to the point where I couldn't exactly just ignore it anymore. I know I should've just said I wasn't ready to say it, but instead I said I loved him back at about 2 weeks into us talking. And I don't think I do.

I care for him, and love him as a friend, but romantic love is a whole other level that I've never wanted to rush into. And I did exactly that. I feel bad because I've said it multiple times to him (each time he says he loves me, I say it back now) because I feel like, at this point, I've already said it once so I can't exactly take it back.

I'm just wondering if I should stop saying I love him (because I don't think I do in the way that he thinks I'm saying it) or just straight up tell him that I didn't mean it. I know I shouldn't have said it in the first place, but it's done now. What should I do and is this normal (have you done this)?

Thank you.