Full of doubt and insecurity

I'm a 19 year old female. My boyfriend is 29. (Please don't judge.) My current boyfriend and I have been together for over 6 months (though we have known each other about 18months. falling in love was a surprise for both of us). (this is my second serious relationship.) I love him so much. And he says he loves me. But I've been doubting his feelings for me lately. He's not a very warm person or emotional. Whenever I feel anxious, sad or depressed he's never very supportive. He often gets annoyed whenever I get emotional. Which then makes me cry more. He once left me crying in his bedroom for 4 hours and went to go play video games. And he told me he knew I was crying but I was "overreacting." I've outright asked him what his top priorities in life are. I listed mine first (my education,family and him. ) His answer to me was "video games, work and relaxing." He didn't mention me at all as a priority. Also, I've met his friends and get along with them. His parents live on the other side of the country and I haven't met them obviously. But he refuses to tell them about me. And he won't give me a reason why. Also, He's met my mother but he doesn't really make any effort to be polite with her. He won't even say hello. My mother doesn't like this. Lastly, we haven't had sex in about 6 weeks. I know sex isn't the priority, but I feel like 6 weeks is so long. Especially since I've basically begged him to let me please him. (I like pleasing him, it's a turn on for me.) But he outright refuses.He claims that there's no point in sex, that he's not into it and never in the mood. But for the first few months of our relationship we had sex once a week! Now nothing, and it makes me feel so unattractive and unwanted. And I know I'm pretty! But my self esteem is still taking a huge hit. I'm just so confused. He can be so sweet, gentle and protective of me. But then all that other stuff happens and I'm lost. Please help me.

this guy his not inluv with u anymore maybe he met some1 else or he showing sign that he want out ithink u should move on before u find him cheating

He's probably hiding something. You have to try and convince him to open up to you and tell you everything. And, if he has a good explanation, then you're alright. Otherwise, he's just not the right guy for you. Good luck!