relationship troubles

Move on breaking him and his new gf up isn’t the right way to go. If you still miss him maybe don’t date another guy because you’d be looking for qualities in your old bf with this new boy and hurt his feelings.

Alanis said it best:

I Want You to Know..
That I am happy for you
I wish nothing but..
The best for you both.

Move on

Write down the signs you should have spotted sooner and make sure you don't fall for similar again?

Nope. Sounds like you covered all the bases.

I haven't yet figured out what emotional cheating is....

move on

Keep him blocked.