<human>: We've been dating for about 4 years. I took today(monday) off work to hang out with her because we've both been pretty busy lately and bought tickets to a museum. Instead she came to my house and we went for a walk for about 30mins. She told me that she wanted to break up mostly because of our "communication" issues.  We have both been really busy for the past 4 months with school and work. But we had a talk about our communication issues about a month ago and I've been trying really hard to improve it. She told me today that she had given up trying to communicate for awhile. So that really sucked.

For many reasons I think that it is at least partly because she's not that into me. I've had a hard time trusting her completely. Now I'm on reddit because its 1pm and all my friends can't hangout until tonight. 

So i'm home and extra alone. 

I cried for a few minutes but now I'm feeling fine. I don't think it's quite set in yet. Shes basically my first longterm girlfriend.

Can you succinctly summarize the text in 1-3 sentences?
<bot>: So I'm asking, while I still feel numb, what are some good tips to keep yourself healthy and sane post breakup?