Why do I always think something bad is going to happen to my boyfriend?

Don't worry dear, you love him so much that u fear that he'l be hurt. It happens. It's natural to have bad thoughts. I do too,, whenever you get such thoughts, try to divert it in a positive direction. Start dreaming about something nice every time it goes bad. Once u get used to positive changing, it will get better and finally the bad thoughts will stop.