<human>: I have had a FwB for about a year. He is 26 and I am 20. Currently I am living about three and a half hours from him and living on my own. 

He said he might see me this weekend so I invited him to stay over, because why the fuck would you spend 7 hours travelling for a few hours with your FwB. 

Before I started renting the place we had discussed how he would stay over and how he wanted to f*** me every day (lol). However when I suggested to him yesterday that he stay over he said 'Will see' and nothing more, and I was like why are you unsure and he said that he has nothing to do in my city and his mom (who he lives with) needs him around, and what can he say to her as an excuse for staying in my city, and that she will think that he's trying to find the way to stay somewhere else. This seems like such bullshit to me. He was living with his mom when he acted like he was going to stay over, so I think something changed in his feelings towards me.

Last month we argued a lot so maybe that's it, but we generally argue a lot. And it's like one day he loves me and the next I am irrelevant. That's how it's been for like all our relationship. I can see that it's not a good relationship, and it's not a real relationship, it's a FwB thing, but I am really into him which is why I've not just ended it...

Condense the text into a few key points
<bot>: Why on earth does my FwB want to travel so far to see me but is making an excuse not to sleep at my house