person A: I saw my boyfriend speaking to his ex girlfriend at the store. The way she looked at him made me so mad. 
person B: Oh man_comma_ I would have been really frustrated. Does she know he is dating you now?
person A: Of course_comma_ our town is so small. However_comma_ I could be letting my imagination get in the way. Gosh_comma_ her smirk is what made it worse.
person B: It's never fun to see your significant other around someone they used to date. At least he is with you now and I'm sure you have nothing to worry about!