AITA for being upset BF didn’t tell me about girl he was pursuing before we met

BF (33M) of 2 months lied about his recent dating history when I (33F) asked multiple times

I asked him when his last dates were/when he was last interested in someone and he talked about a rock climbing date with a girl from an app years ago and said: “I haven’t been interested in anyone in my orbit for a long tjme”, claiming also he had not ever made it past a first date since HS.

Then right before his sisters birthday party he didn’t invite me to because we are new, he kept saying that him and his sister have friends in common. I asked what friends he meant and he didn’t mention any girls. I asked who would be at the party. He didn’t mention anyone new I hadn’t heard about before.

I don’t have social media but I decided before inviting him to meet my family I would look at his to see that there isn’t anything bad and he liked every photo of one of his sisters friend basically for 8 years. I asked about her and he said she is a friend of their friend group. Then I said I didn’t believe he only liked her as a friend because of the stuff of hers he liked (provocative photos, mundane posts only her family liked besides him) and he admitted six months before we met they went on two dates and less than a month before we met he asked her out again and she bailed on him.

Then I asked him to delete her on social media and he deleted all of his social media and backed up the files without telling me until much later.

I get it is two months in only so yes the easy thing is to leave but we have said I love you and I feel attached to him in a way that is rare for me. But finding all of this out on my own and knowing he hung out with her at the party and never told me about her hurts. He said he didn’t feel like he needed to tell me because nothing ever ended up happening between them. Do you think it’s justifiable he didn’t tell me when I gave him so many chances ? AITA for wanting to end things over this??