How to have “The Talk” with my boyfriend

I’m sort of in a long distance relationship and I trust my boyfriend but its always good to be safe than sorry — How do i talk to him about considering getting tested for STDs without him accusing me of cheating (although i have cheated) or even looking at me differently whether he agrees to get tested or not or whether he gets a positive result or not ?

I just don’t want to lose this guy being that i truly feel like he’s the one.

** and i have gotten testes multiple times between the times that we have seen each other but confusion arised on my end but i care about his health & if there is something he’s carrying or that i gave him, it’ll just come back to me **