<human>: Can you provide a brief overview of the text?

I decide to be nice and say hey what's up to fwb of 5 yrs. He's cool doesn't mind I had a valentines date. Says he's still seeing no one. The friends part I offer to help straighten up his place after vqcation. He says sure and offers to give me a ride home if I get a ride to his place. Straightening up never happens. Benefits occurs. I ride with him to work but after a while of being with him at work in the bar scene take off with a friend. I return to scene of fwb and chat up some of his "groupies " that gathered. One satin has his gf but met him only 2 weeks ago. I let friend know his 23 yr old gf is this claiming him. He disagrees but takes me home while she's asking to go to her car. She did sit in the back seat as he claimed to not know where I live. Wtf? He can't be honest? She has to know something us up but doesn't care. He fd me that morning for sure but I keep my mouth shut. I forgot my car key in his yruck, take uber to get it, the girls car is parked outside. I sneak in get my key out of truck and leave. 

I'm not cut out for this but fear sex will not be as good with anyone else as 5 yr on off again fwb. He's really an ass I know especially for showing up last year at my place intoxicated say g the "l" word. He Def has me twisted. What should I do? I hate to loose a decent kind of friend but maybe it's time... just wish I could say see ya mother fucker and have it hurt him.
<bot>: fwb met a girl 2 weeks ago she claims to be his gf. He tells me she is not. Why can't he be honest about Messing with others like I am?