<human>: I have been with this guy for 1.5 year. To be honest, I started this relationship feeling insecure. I love this guy dearly and gave in too much, like I compromise a lot. But at the same time, I have fears knowing my bf's track record of never having a solid relationship before he met me: a lot of datings, never really settled down. The longest relationship he has was 4-month long and the status of this relationship was not clear. He asked her out but never came into agreement about exclusivity. I heard that they parted ways when he discovered her picture with another guy in facebook.
With these insecurities I have, I have been trying so hard to convince myself that my bf has become a better person who is ready to have more commitment. However, there are a few issues that make this effort is even harder. Until today he never introduced me to his family saying that it is unnecessary. He is also very 'shady' about his past life. An example: In the beginning of our relationship, my bf accidentally spilled out stories about the girl whom he had 4-month relationship with, that he liked her a lot and it was like 'the one that got away'. I was hurt really bad because I started questioning whether he has moved on or not.
 All of these make me feel that I don't know where he came from, what made him he is today. I feel that everything is so shaky now.

Provide a brief overview of the text.
<bot>: What kind of things I and/or my bf could do to mitigate my insecurities about my bf's relationship track record?