Help with molestation?

When I was about 9 or 10 my friend's older brother fingered me while I spent the night at her house? I am now 17 and have a boyfriend I've been dating for a year and five months. I think 1 day in the future we will probably get married. I am scared that I won't enjoy because of what happened to me. I know it is stupid being this worried about someone me 7 years ago, but whenever we get carried away kissing I get flashbacks of what happened. We aren't planning on having until after we are married but after that do you think I will enjoy or am I hopeless? Should I ask him not to kiss me the way he does because it makes me nervous and really scares me or should I just let him enjoy himself? PLEASE HELP! Thank you.