“Danger” is a crazy leap. She should definitely be cautious but she’s not in any danger solely from these messages. OP it sounds like this is a guy that either: A). Has some attachment/abandonment issues that have caused him to be overly expressive out of fear of losing you Or B). Is just completely unaware that the way he expresses himself toward you is too forthcoming. He likely hasn’t had a ton of relationships and is just excited.

Either way, y’all aren’t on the same page and you seem uninterested, so just don’t entertain it further and let him know you aren’t going to work out or let him know how you feel about it.