Get lost

If tomorrow I'm not myself, what could I be? Something is changing since I met him. I went to luxurious places, ate and drank expensive food and drink while my family was having a normal meal. He spent hundreds for a dinner for two. Yes, he earns money so easy. Working for 2 hours and he'll get a meal in an expensive restaurant. I'm afraid that I will change, from a simple girl to an extravagant, an honest to a fool if I near to him. Sometimes I think about happiness, I know I have a happy life, but what about the future? What if he asks me that he wants to be with me for the rest of his life? It couldn't be. He is kind and generous. I know he's a good man, but I have no feeling for him. Plus we are too much different. But I have to go with him too much. He texted me with a message had "implication" words. I know it just was joking, but what if he really meant that? Should I stop keeping in touch with him from now? But we have too many things have to do together. I just can't hide from him. But I'm afraid he has a feeling with me. What should I do? Should I give up the shortest way to my goal? What if he didn't mean that? But what if he meant that? Who am I? Who could I be?