Mad at grandpa for having me committed involuntarily

I'm 26, live with my mother, aspie (not crippling, I can function), not exactly working (single working mother, 6 minor children in the home, I do the domestics), senior in college but not currently attending.

I was raised by my paternal grandparents. Grandma now dead. Grandpa is 72 and remarried 11 years ago to a woman 20 years younger. This lady hates me for whatever reason, always has. She told him I was gay (not the case), tried to get some kids at my high school to beat me up, lies and lies and lies. He ends up kicking me out my senior year of high school because she threw a fit one night and threatened to leave him again (this would have been the fourth time in as many years).

When I maybe 10 my grandparents to me to a psychiatrist because of my "anger". My "anger" was me getting upset that my older brother would break into my bedroom and destroy my perfectly neat sanctum. Diagnosed schizo and put on loads of meds. When I'm 14 my grandmother died and I can finally break free of the meds I've had forced into me. I didn't tell my grandpa for 9 months that I had stopped because I knew he would make me take them. He though I had an eating disorder when I started losing the weight I put on from the meds.

Since then I'm fine, though I do have a bit of depression. Very level headed, kinda snarky. No self harm thoughts or actions at all. Identified as an adult as having aspergers, not bipolar/schizophrenic

Over the years I grew closer with my grandpa, we moved across the country and he was the only family I had. We didn't really talk that much, maybe due to different personalities. I'm weird aspie, he is a retired construction contractor tough guy.

Sheesh enough back story. So Superbowl Sunday morning my mother, meth user and also a bitch but we get along for the most part, snaps at me because my sister isn't unloading groceries fast enough. Listen lady I don't need your sass, direct it elsewhere. I call my grandpa, like I do every Sunday, talk for a few minutes, ranting about living with my mom. He's driving, says the signal is bad, call back in an hour. In the meantime I take my dogs to the park a block away. Call him back an hour later and finish our talk. The next thing I know 2 sheriff's cars roll up blocking me in at the park. Now my yapping ass dogs are yapping, I'm like wtf. Leader gets out and shouts my name, I'm like wtf. I get out of my car and my bubble is invaded by this guy like 6 inches shorter than me. Says he was calling me in the hour I was playing with dogs (I don't answer numbers I don't know, especially on a Sunday, cop didn't even leave a message so how am I supposed to know).

The cop is saying that my grandpa has reported that I'm schizo and going off about killing myself with carbon monoxide (I'm missing a window in my car and have an open parking lot, no garage). Tell him he's surely mistaken, he hears that as me calling him a liar and he loses it. Puts me in handcuffs "for his safety and mine". He walks away to call my uncle, his lieutenant, who I don't even speak with, leaving me with his young partner. Partner is quite a few feet away, much less threatening, we talk about WoW and politics and how illogical the CO argument is.

Leader comes back, asking where I want to go. Says I can't go home because everyone has gone to church. My cop uncle refused to have me over. And I can't call my junkie brother to go to his place because he lost/traded his phone in some heroine haze. Says he's taking me in for 3 day evaluation out of nowhere. The fuck if you are. Fuck you. Fuck your kids. Fuck your momma and grandma. Lots of fucks from me to him at this point.

From the psych ward I call my grandpa eventually and he admits what he did. Tell him he's dead to me and haven't spoken with him since. Except to send him a text that says " I hate you" 40 times. Understand that I've never spoken to my grandpa this way. I mean other than telling him with my words how much he fucked up and has hurt me, or to find out if he has dementia or is being manipulated. He's old, I don't want him to die and me be upset, but what the flip.

Tl;Dr My grandpa had me committed for nothing and I don't know how or if to forgive.