What does it mean when a guy says I guess I have a crush on you? Does that mean he doesn't?

Anonymous
Asking for my friend. She is too scared to ask him, so I'm asking on here for her... She told me he kissed her, held her hand, put his arms around her, basically he acted like he liked her romantically. But she's confused because when she asked him if he has a crush on her he said I guess I do. And when she asked what their relationship was, he didn't know what to say... She asked if they were dating and he said I'm not ready to say those words yet... He wants to take her out on a date, and sends her heart texts, but she isn't sure where he stands in this situation. And she wants some opinions about it. I know that you guys don't know him and what he actually feels but thought I'd ask for her anyways. ( Side note: Her mom said he has a crush on her and his mom teased him and said maybe he should take her home)
What does it mean when a guy says I guess I have a crush on you? Does that mean he doesn't?
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