Ask him to help you. Read what you wrote, he should understand, you compromised this message very nicely. You know he wont cheat on you, yet you still are concerned, merely giving you advice and stating to tell yourself he wont cheat on you will predominantly not work, as I am sure you have already attempted it and continue to do so. This is something only he himself can probably fix, as well as you, he may do things which delude your mind into thinking he'll cheat on you.

He needs to stop talking about women and checking them out in front of you, that is disrespectful. You need to sit him down and let him know what he does wrong and why it pisses you off. He needs to put in an effort too, or nothing will change.

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