This manga is meant for entertainment but if you ever get into this type of situation with your bf/gf then PLEASE BREAK UP FOR YOUR OWN SAKE. Also note that a constant obsession like this manga shows is different from someone asking to see your phone.
Some Dialectical Behavioral Therapy might be the way to go if you meet someone like this. It was designed to help people with Borderline Personality Disorder.
Here’s a list of criteria for BPD with the acronym IMPULSIVE
- Impulsivity [at least two areas potentially self-damaging : spending / substance abuse / recklessness]
- Mad: Angry outbursts – intense or inappropriate
- Paranoid : BRIEF stress related
- Unstable relationships [marked by extremes of idealization & devaluation]
- Labile [affective instability due to marked reactivity of mood : ex. intense episodic dysphoria / irritability / anxiety]
- Suicide/self‐harm [behaviors / gestures / threats / self-mutilation]
- Imagined abandonment [frantic efforts to avoid real or imagined abandonment]
- View of self [markedly & persistently unstable self-image or sense of self]
- Emptiness