Question am I overthinking it

Ok so there this guy who I talk to (more like kiss ) for 4 months I mean we barley talk but when we do talk we get along so well. He got me something for Valentine’s Day I was so happy and shy .

We always ask each other y u so serious ( don’t mind my face I was taking funny faces on my friends phone ) I mean I like him I think it’s because we don’t communicate a lot we barley have any class together we only have one and he gets mad when I don’t answer in like two hours but I don’t get mad when he takes 5 or 12 hours to answer me. Like we always txts me first and usually on break I wait for him but sometimes he doesn’t txt till we get back from school I mean should I txt him first today ( he hasn’t responded and it’s been 13 hours) or should I not ???? Oh and also when I go out with friends he’s like where did u go? are there any guys and when I say yes he’s always like mhmnn “friends” it’s like I never question if there girls. Plus when I hang out with my best friend Erick he gets jealous so if I’m on the bus I talk to both of them but he wants me to focus on him I mean I do that a lot but then the next day my friend tells me thanks for leaving me alone I had no one to talk to. So like I have two problems but wait I mean a relationship takes work from both side but should I stay with him or not because I don’t understand my feelings i think I’m starting to like another guy but like I like the other too he’s a great guy what should I do ????