Guy help needed

I have been talking to a guy on snapchat for a few months, (we met on instagram). He lives in another state but we get along really well and talk at least once a week. (he has heaps of school work) anyway recently he started sending messages with a drawn heart. (so he drew a heart and sent it). I like him but I don't know if he likes me back. I need some advice please 🙏🏼✨