Why am I less jealous with my bf?

I used to get extremely jealous when my boyfriend would like another girls picture, or talk to a girl in person/online. I would also get upset when he wouldn't reply to me for hours, but now I don't care as much. I still get a little jealous or insecure. But now, I am just like "whatever". I'm not sure if he realizes this change in me yet, but last week was the last time I remember getting jealous about something. However, now I am just chill on the relationship. I feel really bad and embarrassed for all the times I'd get upset and accuse him of things. I'm also afraid I damaged the relationship with my insecurities :(

we have bErin dating for 10 months by the way.
Why am I less jealous with my bf?
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