<human>: Can you provide a brief rundown of the text in within 3 sentences?

Me and my partner of over 1 year have a strong relationship, it's always been really hard to imagine him being unfaithful since he's a really lovely guy although he does have a few problems which I'm helping him with a lot except from his anxiety. I'm not meaning to be shallow or anything but his anxiety does help with my insecurities. It's not so bad that he can't go out and do things, but it does mean he tends not to meet new people and make friends very often. 

I've not had the best past and relationships, and it's kind of affecting how I've been feeling about him. As he claims, it's the first time he's been in love and I do not underestimate it one bit, but I feel like my feelings had been idle up until the start of the relationship and I'm not so sure myself, I've never felt it and I have not had a great deal of relationships (About 2 or 3 actually). There's definitely something different about this and I'm not sure what.

Recently I've been really insecure, asking him all the details about his ex's and I think it's been to hurt myself, I understand he's been with other people as I have too but I can't really help it. I've also recently been starting to think and dream about what will happen and what it will be like if he cheats on me, it's becoming really bad and it's starting to hurt a lot, I don't know what to do.
<bot>: I've been questioning my partner about his ex's and daydreaming about bad future things (Mainly cheating) to hurt myself and I don't know what to do about it.