How do I trust my boyfriend?

Anonymous
I have noticed my boyfriend tells me little lies that I have a gut feeling he is lying about. I have never fully caught him in the lie but there have been certain things that make me believe he is lying.
For example, he told me he had a football game which he originally invited me to, a couple days later he told me he had to work so he couldn't go and play, but I know he specifically takes time off work to play, this made me believe he didn't want me to come. Another example was he told me his phone broke and he was messaging me on Snapchat claiming to use his cousin's phone and sent me a screenshot of something, and the layout on the phone was the same he had on his "broken" phone (the service provider, the alarm clock icon) causing me to believe his phone wasn't broken.
Now I have not fully caught him in any of these lies just from what I observe.
These lies made me not trust my boyfriend anymore, i often overthink and think the worst things, which i think causes me to not trust him even more, even sometimes when I know for a fact he is not lying, some part of me still thinks he is.
every time I bring up that I think he is lying to me about certain things he gets defensive and he does not lie to me and he only speaks the truth and I need to learn to trust him and if I don't that we should talk about breaking up.
I do not want to break up with him, is it possible my own mind is making me think this way? Is my boyfriend right that I need to learn to trust him but I also was thinking that shouldn't he try and help me regain his trust again?
How do I trust my boyfriend?
3 Opinion