Is he too much of a yes man or am i being rude?

so after a series of guys dumping me or cheating on me so i have to dump them ..... I met this guy , he's really thoughtful and nice. But he seems to be that way all the time and way over the required amount. He is always telling me that I am his happiness and that he cant imagine a life without me. Thats really sweet and all but i really don't find it attractive. In addition to all this , he wants to meet me everyday and says that he misses me all the time. For example we met yesterday, and this morning he texted me saying that he misses me and he loves me. -- I honestly find it very over the top and this whole thing has got me doubting whether his feelings are genuine. I really do like the guy so i decided to have a conversation with him about self love , because i assumed that his desperate need for my approval was deep seeded in low self esteem. The conversation didnt end well and he snapped back at me saying that all of my exes dumped me because they loved themselves. He says that he doesnt need to love himself and that he is not willing to as he is afraid it will turn him into an asshole. -- I obviously cant force someone to sort their issues out so here i am .... slightly disappointed and wondering if theres an alternative solution.

I am his first girlfriend .... he has had other women in his life but they have all been married and he was always been the 'other guy'