<human>: Condense the text into a few key points

Need some perspective. Male and female with relationship issuing concerning your partners past. 

Has it been an issue for you or your partner. Was was the specific issue and how do you help the person understand the past stays there. 

My boyfriend has gone ballistic overnight with no provocation calling me a slut because I was with people before him and he has "standards" and for once wants to meet a girl who acts right. Meaning didn't sleep around. I don't feel I have but he says my number and my "love of sex" tell him otherwise and I am not to be trust. After three years. Some insight would help as I have no issue with his past nor the past of any of my partners.  Thanks all!
<bot>: I (27f) needs help understand my bf (28m) of 3 years issues with me having slept with other people before him.