46 desperate for a connection

So...I don't know why I'm here on this site doing this. I probably have a better chance getting struck by lightning than finding someone interested, but after the evening I had, I just feel like I need to do something, so here goes:

So I'm a 46mwm living in the Toronto area, and this is me

I'm about 6'2 215 pounds, brown hair and beard, tall strong hairy dad bod type, totally clean and disease free

I'm also outgoing, fun loving, easy going, caring, respectful, and all around, a great human being to get to know. I enjoy going out to movies, restaurants, concerts, I'm pretty much up for anything fun, but I also enjoy my peaceful time at home, chilling, listening to music or watching tv. I pretty much get along with everyone, and I'm all about making those that I care about happy.

So, marriage wise, been married for 16 years now, and the love is still definitely there, but the romance, the passion, any sort of feeling similar is just non existent these days, and to no one's fault. She's busy working on her PHD, and I work third shift. We also have a 15 yo daughter who is struggling a bit with her freshman year of high school, so needless to say, the stress level is pretty high around here, but I have done my absolute best to support both of them, and today, my wife pretty much showed me how it really is.

So, we do argue alot, to the point where I'll just give up instead of continuing, and I always knew we had some differences, but after a stressful day of trying to figure out the school issues for my daughter, my wife comes home and immediately starts telling me that I don't support her and I just don't recognize what she's going through, but funny thing is, I have seen it day after day, and I never stopped supporting my family, and then she has the audacity to not even give me the chance to defend myself. So I've had it! Nothing i do or say will ever matter. With that being said...