Would you consider this cheating?

My now ex of 4.5 years has been acting weird. He has been going to his moms vacant apartment for the last 5 nights. Not super odd him going there to sleep sometimes (has to check on the place while she is away, but I dont like it when he goes more than once a week, and believe it could be less). Anyways, he said he was hanging out with a friend on wednesdsy and another one from out of town on Thursday. Now last night I wasn't able to sleep. Sick Friday and slept all day, so was wide awake. I just had a feeling to look at his phone and there was a message not read from the friend he was supposed to hang out with on Wednesday and not even a call out to the one he was supposedly hanging out with on Thursday. Every other night he was there, there was an excuse. After I went into his other junk email and noticed PMs from a porn website and just had a hunch. I also realized his laptop hasnt been here for a very very long while, so I got a pit in my stomach. We have had issues in the past with him talking dirty with randoms on okcupid. He knows how I feel about it, believe me.

Anyways, I drive to his moms and 2am and find his laptop. Copious amounts of porn, and then I log into the website that was pushing notifications into his email. There were 4 strings of messages, but I only really read the one.

Anyways, I consider this cheating and he considers it a betrayal. The fact he lied to me and left me to care for 4 kids alone so he can talk to this person, to me says otherwise.

There is more than what I am positing, but to just give a general idea of what he has been doing.

And fyi, other than the last couple of weeks, our sex life is fine.

Pic #3 should be pic #1. Hoenstly, I'm sick to my stomach. I broke his stupid fucking laptop and kicked his ass out. We have 3 kids. One biologically his and 2 that call him daddy (their dad isnt involved). I'm so sick knowing that I have to tell them their dad isnt goong to live with us anymore.

Vote below to see results!