No problem is ever stupid or crazy really lol. A few months is actually a pretty long time. I don’t think that there is a minimum of time of getting to know someone before you start getting buddy buddy. Once you’re friends with them, then you’re friends with them really lol. Well, if it’s nothing too serious like being in a relationship with them and just only being friends, just give it time. Judging from what you’re telling me, I’m pretty sure that these guys are the ‘lazy texters’. So they’ll just read your message and just forget to respond. Just start off slow with them. Don’t over do the texting because they might start to get annoyed. Get to know them more in person. When you guys have more to talk about, more likely they’ll start responding to your texts. Give it time. Hope this helps :)