Guy bullshit

Talked to this guy that used to lived in my city and now is in the marines and lives in California. Went out there to see him, had unprotected sex (irresponsible I know) 4 times, everything was going super well. Last day there he was showing me something on his phone and someone texted him it was a girl name and I became upset. She was literally blowing up his phone. Went on his Instagram went through his friends and he has been commenting on other girls pictures. Went home and he hasn't said two words to me. Not to mention I might be pregnant. :(