How much time have you spent in person?
Why are you in a relationship with someone who is unworthy of trust? Who has cheated on every girlfriend he’s ever had? What makes you think this is different? Why are you long distance and how in the world spdoes him texting you that he’s at home chilling alone make you feel better? He could be doing anything, at anytime, with anyone.
You don’t trust him. You never will. His entire relationship history isn’t something anyone can unlearn or choose to ignore. It’s pertinent information for you. And you know that he will cheat if he hasn’t, most likely. And when it happens he’ll say, “well I never lied about the kind of guy I am.”