Helpp

So there are two guys. One I’ve known for about a month and I like this one A LOT. The other one I just met today and he’s sweet and everything but I like the first guy a lot more & we have more of a connection, I can goof off with him about anything. I need help breaking it off with the 2nd guy. I know it’s been literally a day but I feel bad bc he’s always calling me beautiful etc... I thought about going ghost but that wouldn’t be fair to him, so how do I break this off without seeming like a huge bitch??