i am with a lady i have been dating for about 9 months she is the best thing to happen in my life and i am afraid i will drive her away.we went on a trip overseas and she was flirting with a bartender so i told her that night i thought she was flirting to much with another person.she got scared and left for the night i walked the streets all night looking for her, the next morning she came back and said she had gone to another bar and drank all night and thats where she was. 
i have had bad luck in past relationships and want this to work she has had similar luck in the past. 
we need to be more open but not sure what i should start with on my part to make her feel more secure with me. i mentioned marriage once and she got real scared so i havent mentioned it again. i also mentioned couples counsiling and didnt get an answer weither way. 
anybodys thoughts would be appreciated greatly they say third time is the charm and this is the third seriuos relationship for both of us