My boyfriend is 18 and I (female) am 17. We have been going out for 1 year and 10 months now. There have been so many ups and downs due to my boyfriend cheating on me. In total he has cheated on me 3 times.

 1. In the beginning of our relationship he was constantly flirting with a girl from a different school. They were on and off for quite awhile. He never admitted to actually flirting with this girl until a little over a year in our relationship. 2. I was gone in the beginning of summer vacation for a week and he had a small fling with a girl from his church. They went on a date and I did not find out until the end of summer. 3. In the middle of summer I left vacation again for a whole month. He constantly went to parties. He made out with a girl from a year above at a party that included of all of my close friends. 

I know these aren't major cheatings compared to the other stories I read here but when this is your first serious relationship it really hurts. I had him either cut off all ties with all those girls or we're over. He chose me. I have so many trust issues with him due to being betrayed the first year and a half of our relationship. My family does not like him, even though they don't know about the cheating, so it makes a huge conflict of me going out with him. My mother always interferes with my relationship saying hurtful things about him. He honestly has changed in my eyes but I can't seem to forget about the things he did to me in the past. 

Any advice on overcoming horrible past experiences? Or the fact that I will never be able to look past it is a sign that we shouldn't be together. Ask any questions you'd like because I have not gone into great detail really. Thank you for reading.
user
boyfriend cheated on me 3 times in 1 year and 10 months,
assistant
My boyfriend is 18 and I (female) am 17. We have been going out for 1 year and 10 months now. There have been so many ups and downs due to my boyfriend cheating on me. In total he has cheated on me 3 times.

 1. In the beginning of our relationship he was constantly flirting with a girl from a different school. They were on and off for quite awhile. He never admitted to actually flirting with this girl until a little over a year in our relationship. 2. I was gone in the beginning of summer vacation for a week and he had a small fling with a girl from his church. They went on a date and I did not find out until the end of summer. 3. In the middle of summer I left vacation again for a whole month. He constantly went to parties. He made out with a girl from a year above at a party that included of all of my close friends. 

I know these aren't major cheatings compared to the other stories I read here but when this is your first serious relationship it really hurts. I had him either cut off all ties with all those girls or we're over. He chose me. I have so many trust issues with him due to being betrayed the first year and a half of our relationship. My family does not like him, even though they don't know about the cheating, so it makes a huge conflict of me going out with him. My mother always interferes with my relationship saying hurtful things about him. He honestly has changed in my eyes but I can't seem to forget about the things he did to me in the past. 

Any advice on overcoming horrible past experiences? Or the fact that I will never be able to look past it is a sign that we shouldn't be together. Ask any questions you'd like because I have not gone into great detail really. Thank you for reading.
user
boyfriend cheated on me 3 times in 1 year and 10 months
assistant