Have some respect for yourself.
- Why are you following him around? / Чего ты за ним бегаешь?
- I love him and I want to be with him. / Я люблю его и хочу с ним быть.
- Come on. He's ignoring you. Don't you see that? Have some respect for yourself. / Хватит уже. Он тебя игнорирует. Разве ты не видишь? Уважай себя немного.