Student Exchange Programs

My ex-girlfriend and I are still good friends, she knows I still like her, but she doesn’t hate me or anything for it, she has a new boyfriend, and has been going out with him for awhile, but he’s going abroad for a year as an exchange student, its in about a week, so I’ve been not asking to hang out or anything because I know she’ll want to spend time with him, but after he leaves, should I talk to her and offer help? Or would it be more helpful to let her be alone?
And I’m not trying to get us back together, I want to move on to other girls, and when she got a new bf I was like “This is perfect, now I can get over her” I’m not trying to help to get her to like me again, I’m trying to help to stay friends