Well first. You already go to the same chem and you might have more in common. If you already have a past history w the person it might be easier. You might regret what you didn’t do in the future, but you will likely not regret telling her. Idk if it’s any help but yeah, try connecting and feel the connection. When the time feels right(you’ll know I promise) then you just say it. You’re a stranger but I wish you all luck, take care!