It's rude to try to control what your gf does.
Ron is in a long distance relationship with Emily and is jealous of her close friendship with her ex-boyfriend Paul.
Ron wants Emily to spend less time with Paul.
Ron decides to move closer to Emily so that they can spend more time together, meaning she has less time to spend with Paul.
Ron asks that Emily cut off all ties with Paul for the sake of their relationship.
Emily is thrilled that Ron is moving to be closer to her and cancels her plans with Paul, so she can spend more time with Ron.
Emily is torn between her close friendship and her relationship, but decides to agree to Ron's request.