<human>: So this happened about 4 hours ago. My bestfriend, Jacob,  and I went on a hike earlier this morning.Oh we are roommates too. We were having a good time smoking weed and stuff, and we go about halfway up the mountain and sit. 

We're sitting there and all of a sudden his girlfriend calls him. She's mad because they were gonna hangout but he cancelled because he wants a day to himself. They hangout everyday pretty much so he was exhausted from her. I can hear what she's saying the whole
time because his phone is loud. She asks him what he's doing then, and he simply tells her hanging out with me. She proceeds to say "you don't even like him" and he says "you don't know that" and she says "yeah I do. you tell me all the time, Jacob". He quickly changed it back to them and I'm just sitting there like a fool. 

I don't know what to do, do I confront him? I don't know if he knows I heard. He's been acting completely normal, and he doesn't act like he doesn't like me.
I'll update if I confront him

Can you summarize the given text in a few sentences?
<bot>: On hike, friends gf calls him. they argue, and  I hear her say how he always says he doesn't like me. my feelings are hurt