Why did i dream about him kissing another girl?

i feel like dreams like this usually hit hardest when you're already missing them. did it leave you feeling more jealous, scared, or just sad when you woke up?

i remember waking up from a dream about my ex with someone else and feeling jealous all over again. i had to remind myself that a dream can hurt without being a sign of anything.

i've had dreams like that after a breakup and woke up with my chest hurting like it actually happened. the brain really knows exactly where to poke.