Yes. You have a right to not disclose what you would spend your money on. However, it seems clear that they thought that you were going to spend said money on your financial situation and perhaps wouldn't have otherwise gave money if they knew it would be spent on something more indulgent. I can see how it can come across deceitful to others. Especially since you said you reached out to friends and family about your financial strait

That being said, if they take issue with what you did, the simple solution imo is to once again offer to repay them. That removes some doubt that you "lied" to them.