does my gf like her ex?

Stop overthinking it—people’s feelings can be complicated, but if your girl still gives a damn about her ex, she’ll show it through her actions or tone. If she’s constantly texting, reminiscing, or acting shady, that’s a red flag. If she’s cool and not sneaking behind your back, chances are she’s over it or just grown up enough to be friends without chaos.

Either way, the best move is honest communication, not mind-reading. But since you’re probably losing sleep: this no-BS relationship guide is a good start on handling this that doesn’t require mind-reading skills.