I have fight with my girlfriend very often. She never cares about me .If I’m sick also she cares for her things to be done 1st.Recently I told her not to drink, she went with her friend and had a drink But I’m tensed as how to get rid of it.

She does not care about you, does not respect your sentiments and ignore your advises then why should you continue with her? You should discuss this with her and if she does not show sincerity and inclination to improve her attitude then rethink about continuing this relationship.