<human>: Can you provide a brief overview of the text?

I realise that i'm insecure, i try not to be but i always worry that my bf is going to leave me. He has improved my life massively since meeting him 3 years ago and i feel like if he was to leave me now i wouldn't want to live anymore.

Before he met me he used to travel a lot and i know he's slept with a lot of girls and i worry that he misses being single and working abroad, just last month his friends were talking about going to Spain on a guys holiday and he told me he wasn't going to go because they would be drinking a lot around girls and that it wouldn't be fair to me if he went, which is sweet of him but i know he really wants to go.

My friends don't help my insecurities, one of my friends flirts with him all the time and one night when he dropped her home she invited him into her flat to watch a movie, which i felt was very inappropriate. Another of my friends openly admits that she's attracted to him and always gets dressed up if she knows my boyfriend is going to be around and it makes me uncomfortable cause i knows she's more attractive than me. Also his ex is beautiful and she still messages him occasionally and it seems like she wants him back, she's the only girl apart from me that he's ever loved and i know i could never compete with her looks wise and i worry that he misses her.

How do i get over my insecurities? Part of me wants to get pregnant so he would be less likely to leave me but of course i would never trap him. Do i just accept that my boyfriend will inevitably leave and enjoy being with him for as long as i can?
<bot>: I feel that my bf is too good for me and will eventually leave, i think he misses being single and better looking girls than me are interested in him.