Is he cheating on me or am I paranoid?

My boyfriend treats me really well. We get along great, he tells me I'm pretty often, he holds the door for me, we have frequent and excellent convo, etc.

But lately he has been acting shady with his phone. He changed the settings on his iPhone to not display incoming texts, he deletes his internet history often, and the couple of times I have looked through his phone it looked like there were text messages deleted. Convos with certain friends seemed choppy and there just weren't that many texts in there.

I know sometimes ppl just don't like a lot of stuff to build up, but it seems suspicious to me and I'm drowning in negative thoughts.

I should mention he has not cheated on me to my knowledge. He had however cheated on a past girlfriend who he dated for about 2 years. He hooked up with another girl when he was away at tech school for the air guard. Now he is away at flight school, so I feel nervous about that past cheating event.

Am i being to suspicious and crazy?

I do not think you're being paranoid at all. Once a guy starts changing options on his phone, settings, to block you to where you can't see what's in there then he is hiding something, of which is usually a girl, it's sad but it's the truth, confront him about this if he is not willing to let you be able to look in his phone then you need to take a serious look at your relationship

I don't think it's that crazy, if he's cheated in the past he's obviously not the sort of person who feels guilty about that sort of behaviour. All the phone setting/texts/deleted history is very suspicious too. It might be best not to jump to conclusions right away but if I were you I'd stay on guard.