Can't believe it. Who does that?

So I lost my nan on Saturday, I found out at the guys house I was dating for 5 months. Anyway things had been really odd. He always said he wasn't sure how things would work with so many variables, kept asking me when I was applying to do my training and were would i live etc. Making out as though we would have a long distance relationship when we live half an hour away. Anyways, last night I had a bad feeling about him. I goes onto the dating site we met, and found his account reactivated.
I asked him about it- his reaction was that he had a bill on his statement an he thought it was associated to the account. Anyway, it didn't make much sense, as further into my questions, he tells me he figured since things weren't working out, that he can go back online.

My issue isn't him reactivating his account. It's the fact he lied to me about it by making a bs excuse about a bill, not ending what we were doing an only days after my nan died.
I think it's disgusting someone could do that. I was inconsolable, every day has been a struggle an he's seen it. To say he even cared is a lie

What should I do
Can't believe it. Who does that?
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