Update - Am I being unfair to my partner?

I need some objective advice please. I work full time as a manager in another town from home and stay away two nights during the week, my partner works from home in his own business. He has two grown sons, who I've helped raise since pre-teen, one of which is home for a week then we are taking a week off together to spend with that son. I call my partner every night I'm away and tonight is the second night. He has many friends and acquaintances, whereas I'm more reserved and have few close friends, he sometimes teases me about that like its a bad thing.
Tonight I called him as usual, he said nothing exciting happened for him today, "it was boring". I said I was really excited to run into an old good friend from school who I had not seen for at least 15 years, she and her husband were both good friends of mine, during and after high school, they're here until Sunday and I am hoping to see them tomorrow maybe after work or during the day. I told him my friend's husband was saying that I should stay the night with them tomorrow, they have space and it'd be great to catch up, my friend agreed. I laughed because it hadn't occurred to me but was doable! My partner became angry and asked if I was coming home tomorrow and what time, he said he must know tonight because he'd made plans (i was not aware), I said of course I'm coming home, I'm usually home by 7.30, you know that. I said why are you being like that, I was really excited by this surprise. He said it (running into my friend) had nothing to do with him and nothing to do with us. I said Pardon? He again demanded an exact time, I said I can't provide it, he knows that, it depends on work (knowing full well he doesn't need an exact time but by 7.30). He then said he had to get up early Saturday to go to a market, I knew nothing of this and told him so. The last time we spoke he had nothing booked in this weekend. I then said to him he's being mean, that he teases me for not having friends, in his opinion, then I run into someone who was a close friend, lives a long way away and I've not seen for 15 years and instead of being excited he's being really nasty, I told him he should pull his head in. The partner said "I don't have to pull my f$&@ing head in" and started yelling. I hung up. I'm sure he'd been drinking. He's pig headed and tends to drink most days. He can be so nice but other times so nasty. I feel so disappointed by his attitude. I am always supportive of him having friends over, him seeing them, him visiting them when he's away! hosting his family - who I love to have visit. BTW having him ever spend time with my family is not worth the tantrum, it's horrid and his behavior has dampened many family events. If the situation was reversed I'd be so happy for him and encourage him to stay the extra night. Am I wrong or is this wrong? I need some objectivity, I just feel so disheartened when he behaves like this. He never apologised but always tries to do nice things after the damage is done :(...... Writing this is helping me to see the reality. Thanks for reading xx

Here's an update .... I decided I needed to stand up to this behaviour, otherwise I'd miss a wonderful opportunity to reconnect with a close friend, he's just ruined too many in the past, I think this one was really meant to be. I phoned my stepson to let him know I was planning to stay an extra night and why (running into my friend), he was supportive and had no issue, I'd see him the next morning or next week. I sent an SMS to the partner to let him know my plan to stay, nothing nasty, just letting him know. I then received a text from him, saying I should stay Sat night as well. Not long after he phoned me, yelled at me, abused me, told me he was going to stay away for the weekend "to have a good time", stated he did not know these people - I said he could check them out on my Facebook if he wanted, and he said that I will not be going away next week with him, he would go himself and "have a great time". I asked whether he was worried I was having an affair and totally reassured him that wasn't the case. He said he had no concerns about that. I told him his behaviour was not okay, I would not let him ruin this for me, and if he didn't understand this was wrong he should speak with someone to explain it to him. He hung up on me. I worked hard to put it aside and had a nice time with my friend and her family, I drove home the next morning and took the stepson out for an early lunch before he left - I also added that his dad was not happy with me so I may not see him next week, but I would be thinking about him - I didn't say anything else as its not his burden, he shook his head and laughed a bit - he knows what his father is like, but he's also his father, I'm aware of that. The partner came home and has not spoken to me since. I am being very calm and am doing nothing to rock the boat. I am planning to use my leave over the next two weeks to finish up our overdue tax return and pack. It's been nasty over the years, I have been in a physically violent relationship previously and I got out, I've had other normal relationships, but this is the first time in this relationship that I actually feel unsafe, so much so that I have let my sister know and have come up with a bit of a safety plan. Am I overreacting? Any other suggestions would be very welcome ....