Why are you trying to make yourself care.
When someone cheated multiple times. You may feel stuck in this emotionally damaging pattern and unable to determine why this keeps happening to you. It is one of the worst situations an individual may experience in life. The good news is that things can be better.
Nonetheless forgiving someone for cheating will actually benefit the faithful person more than the cheater. Many cheaters tend to be repeat offenders. You do way more for him than he ever did for you.
Twice or more is a pattern. Either he is not into you or he has serious cheating tendencies. Here is an excellent TED Talk that unpacks the trauma associated with infidelity.
Knowing that you cannot cause another person to change must be clearly understood. If he would have cheated only once then atleast we could have still had some hope of reviving this relationship. Why should the serial cheater be forgiven or provided a third fourth or fifth chance.
The more you lie the less guilty you feel about. For pretty much everything but love most cheaters are just4 flat out cowards and very selfish they are more concerned with their own situation and what would happen to them but also will try to justify staying in their own minds telling themselves whatever they need to for instance some blame the spouse and tell themselves their behavior forced it if caught they will justify the lies about the affair that always come after as sparing them from more. This guy has cheated on you continuously and you have given him all that you can.
In both cases you should not put up with this habit. 1 1 Cheaters are likely to be unfaithful to their partners multiple times. Kids of divorce do okay if parents are motivated to divorce in an amicable and child-focused way and it sounds like you have the motivation to do this.