I think the only reason I'm hesitating to text her is because I'm afraid she'll text something back that I interpret as hurtful again. Should I just toughen up—i.e. if she does, why should I let it affect me?
Place kindness above fear. If you want to show kindness to her, don’t let your fear of her response stop you. Plus it’s easy to stop a conversation with texts lol!!! Also want to point that it’s a common theme- you want to explore your sexuality but you’re afraid of H’s response. You want to text MIL but you’re afraid of her response. Maybe this will be a good practice to conquer your fears. What’s the worst thing that can happen? If she tells you to move on again, you can say “thank you, I will think about it.”