Am I being gaslighted??

Lauren • Jersey Mama to Faith 💖 Asher 💙 and Hudson 💙

So last night I confronted my husband about a message he sent to another girl. He asked her out for coffee. He had also not long ago commented on some of her pictures saying how pretty she is. My conclusion after I saw all this was..so he is asking a girl out who I've never met or heard about, and clearly finds her attractive with his comments. He turned it around on me, said she was an old friend. He said he never went with her for coffee but he would have told me. He doesn't tell me anything and he's never home so I told him I doubt you wouldve brought that up. He made me feel like crap and completely dismissed how I felt. He treated it like he did nothing wrong. I told him I felt it was inappropriate and it hurt my feelings so I asked him not to ask her out again. He said ok ok. That was it. No apology, nothing. Did he gaslight me by down playing the situation and saying I was being paranoid and dramatic? How can I stop from being gaslighted again?