Social media advice

Ok so my boyfriend and I have been together for a couple of years well we separately have a Facebook before we met , of course . Well in the beginning he said he hated Facebook it causes problems between couples so he hated it, so we/I stopped using mine so I haven’t had it in. Long time well we split up for a couple of months, In that period of time he met several country artists and is trying now to promote so Facebook, Instagram, YouTube, and now tick tock . He has a guy friend which is spreading my boyfriend Facebook and all sites links so he says the more chicks/friends the more they will share and start liking the new coming artists. I am so pissed off. This is something that he really wants to do and would be amazing at , it’s just all girls and the tons and thousands of messages he’s going to receive, he says he would never message a girl or lead a woman on in anyway .yes we live together and he says that should mean a lot to me but heck when he’s home he’s on his phone constantly. Am I over Reacting or should be happy for him and let him do this since it’s so important to him ?