Grow the F up, OP! You'll be lucky if he doesn't dump you. (He won't be lucky if he doesn't though!) And if there's THAT much mistrust in the relationship, end it instead of flipping your sh*t.
You tell her Penny Lane! I think she's been hanging with Lucy in the Sky with Diamonds along with Eleanor Rigby a little too much in the Lonely Hearts Club...
Time delays mean nothing when a text is as recognisable as this one sounds like it would have been. How many people send texts with loads of hearts at the end?
Maybe his girlfriend is paranoid because of something OP did in the past. For me personally, I can see why she did it but I don't necessarily agree with the way she went about confronting him.
OP: *slaps boyfriend* "I can't believe your cheating on me with that bitch!"
Boyfriend: "I'm sorry! I swear I won't be with her anymore!" *walks away*
What the hell? First of all, hearts in a message does not warrant an argument. How childish.
Second of all, how the hell did you not recognize your own text?
Lots of overly jealous girlfriends lately...but seriously how do you not remember your own text? And you didn't realize you were reading your own conversation?