My boyfriend is Armenian and I also wanted to learn to impress him and converse with his family. The best online classes I’ve found are the language course through the Peace Corps Armenia YouTube channel https://youtube.com/playlist?list=PLTdOEWx7hBZzs5oyiByEqmS66UIbWiyjg
Also there’s a duolingo knockoff app called Ayo! lingo for Armenian that’s decent. I’m also a weirdo and read the dictionary and got this book called “how to read Armenian in 5 days” that helped with the alphabet Learn to Read Armenian in 5 Days https://smile.amazon.com/dp/B00X1XAX4G/ref=cm_sw_r_cp_api_glt_99HM1P015A4PW22JBXMC?_encoding=UTF8&psc=1