If you ask your boyfriend to borrow money by text message, he won't reply to this topic. Is he stingy or doesn't love you?

No, you think too much. If you only borrow it once and stay together for a long time, don't pay attention to him if you get rich. If he really saw it, he would call you. If he contacts you but doesn't say anything, you can ask directly. There is nothing embarrassing between lovers, and there is not so much beating around the bush.