My Gemini..I need to vent

So I have a Gemini bf , we're both 27 y/o, who I've been seeing for a minute, which it's been pretty good so far, better than any other relationship I've had (after dating Aries, Taurus, and Leo men)! Now, I've been reading here where a lot of Aries ppl say that Aries and Libra have a special connection, but I swear I was connected to him some kind of way, call me crazy (which I don't care 😉)but it just felt like I should be with him, and the strangest is he said the exact same thing. I mean we are genuinely like TWINS! We have almost everything in common, like food, music, favorite TV shows and movies, style s, etc. It's so weird bc I never thought I would find a guy who's so much like me, but in a more MANLY way. He does everything for me! He always compliments, he opens the doors, he buys me things ALL the time, we go out almost every weekend (bc we both work like crazy during the week), and he tells all the time, still to this day, when you're available I wanna be available, which makes me love him more. He even asked me to marry him, which I was kind of shocked bc at that time we were only together 3 months, so it was...uh I'll say "an unanticipated surprise" for a lack of better words. Nevertheless, since then we do want to get married and I told him we can just take our time and make sure this is what we want, which he agrees bc HE wants to do the whole "down on one knee will you marry me" spill bc he's never done it so he wants to go all out. So we're just pacing right now. I'm just on cloud 9 when we're together, which is almost always, Cool, but...

dun, dun, dun, dunnnnn...

We kind of have the same personality which butts heads (all three) often. It's not heated arguments where we're degrading and shouting and spitting, it's more of a "I'm right, no I'm right, NO I'M RIGHT!" or "I mean, no that's not what I meant, Yes you did mean that, no I didn't" type of arguments which for me is frustating bc my gem is a TRUE GEM when it comes to changing his mind on something in a split-of-a-split second. I'm always confused so I just go with the flow bc I know it's not gonna be too bad with him, but then last night we had a rather "intense" arguement and it's something I just can't get out of my head. First of all, he's really going thru some real issues and it's taken a toll on his mood, which is already...varied. He wants me around but he wants to sulk, and with his situation I truly don't know what to say to him, so I just rub his ears or his back

and shut the hell up bc I don't wanna make a bad situation worse. But last night I think I did, I asked him a question, and he took a WORD from that question and turned it into something completely different, making it seem as if I was trying to break up with him, which he then tried to "make" me say I was stuck w/ him for the rest of my life, which you Aries' know didn't sit well w/ me. Then, he says, and this is pure truth, " I really don't care what you're doing when I'm not around, it's not a big deal, but you don't ever tell me what you're doing when you're not with me, and it's like I gotta find out at the last minute, I just feel left out, and I tell you everything, I feel you should tell me since I tell you" (which I do, just not every minute of my day). Now that sounds contradicting to me, bc I do tell him what I'm doing when he's not around I just don't tell him every little thing I'm doing.. now he says it's not a big deal, then makes it a big deal, and YES it was a big deal bc when I blew it off AFTER he did, he went H.A.M!
I didn't wanna say anything too harsh at that point, like "you're not GOD or my daddy" (which is what I was thinking) but I knew he was already in a hard place and I, again, was trying to behave.
Moral, I don't know how to act around him when he's in this "depressed" kind of mood, bc I've never been with a man like that, and being an Aries woman, I spit fire with the best of them, but I don't wanna harm what we have bc I know it's special, but I know my mouth and it can get pretty ugly when I feel I have to defend myself, but it's getting hard to have a filter around him bc I'm sooo comfortable around him and something it just falls out, BLOOP, right out my mouth before I have a chance to stop it, and I know that I know, if I don't do something it will make matters worst. Please help me with what to say to a man in this mood, bc when I don't say anything he gets mad, when I say something he gets mad, I can't win! And not being around isn't an option, I already tried, he wasn't going!!

Thanks duchess, you're so right! It's normally just that, we're BOTH too prideful to feel like we're losing the argument since we BOTH love to debate!~ But you're right, best for one of us (me) to sacrifice now before they get worse. And I'm not worried about him making me happy when He's going thru, I just don't know what to say to him or what to do bc nothing suffices, which is my problem. He wants me there and I wanna be there but when I'm quiet it's a problem and when I talk it's a problem, when I leave it's a problem, nothing works. I'm here bc I feel I've tried all avenues I could think of. Yeah, I can be really selfish sometimes in this relationship, have no problem admitting that, but I can honestly say in this moment I haven't been bc EVEN I understand it's a lot bigger than me. I wanna give him his space I tried; he doesn't want it, which causes another "debate", which confuses me.